Figures are in 2012 $US.
- Mansa Musa I – Net Worth $400 Billion
- The Rothschild Family – $350 Billion
- John D. Rockefeller – Net Worth $340 Billion
- Andrew Carnegie – Net Worth $310 Billion
- Nikolai Alexandrovich Romanov – Net Worth $300 Billion
- Mir Osman Ali Khan – Net Worth $230 billion
- William The Conqueror – Net Worth $229.5 Billion
- Muammar Gaddafi – Net Worth $200 Billion
- Henry Ford – Net Worth $199 Billion
- Cornelius Vanderbilt – Net Worth $185 Billion
- Alan Rufus – Net Worth $178.65 billion
- Bill Gates – Net Worth $136 Billion
- William de Warenne – Net Worth $147.13 Billion
- John Jacob Astor – Net Worth $121 Billion
- Richard Fitzalan 10th Earl of Arundel – Net Worth $118.6 Billion
- John of Gaunt – Net Worth $110 Billion
- Stephen Girard – Net Worth $105 Billion
- A.T. Stewart – Net Worth $90 Billion
- Henry Duke of Lancaster – Net Worth $85.1 Billion
- Friedrich Weyerhauser – Net Worth $80 Billion
- Jay Gould – Net Worth $71 Billion
- Carlos Slim Helu – Net Worth $68 Billion
- Stephen Van Rensselaer – Net Worth $68 Billion
- Marshall Field – Net Worth $66 Billion
- Sam Walton – Net Worth $65 Billion
- Warren Buffett – Net Worth $64 Billion
Now the weight of gold that came to Solomon in one year was 666 talents of gold, besides that which came from the explorers and from the business of the merchants, and from all the kings of the west and from the governors of the land.It is uncertain if 1 year represents his best year, i.e. a specific year, or every year. Taking 1 talent as roughly 75 pounds (~34 kilograms), 16 ounces per pound, this is an income of 799200 ounces. At $US1750 per ounce this is an annual income of $14 billion dollars in 1 year. Solomon ruled for 40 years though he may not had had that income every year, especially in the earlier years. This is besides all the income from explorers, merchants, kings and governors.
He also had $11 million worth of chariots of his own besides what he made thru exporting them. He had wealth in ivory, fauna, and spices. Silver was so abundant its value was not worth calculating, "Silver was not considered as anything in the days of Solomon." (1 Kings 10:21).
He also owned much land. His palace in Jerusalem, his palace in Lebanon. He was able to give cities to King Hiram and his wife was given a city by Pharaoh on Solomon's marriage to his daughter. The land holdings probably add significantly to his valuation. It is likely he would get into the top 25 above.