Forbes 2015: World's 10 Billionaires

10. Liliane Bettencourt & family

Net Worth: $40.1 billion, Source of Wealth: L'Oreal
Citizenship: France

9. Jim Walton

Net Worth: $40.6 billion, Source of Wealth: Wal-Mart
Citizenship: United States

8. Christy Walton & family

Net Worth: $41.7 billion, Source of Wealth: Wal-Mart
Citizenship: United States

6. David Koch

Net Worth: $42.9 billion, Source of Wealth: Koch Industries
Citizenship: United States

6. Charles Koch

Net Worth: $42.9 billion, Source of Wealth: Koch Industries
Citizenship: United States

5. Larry Ellison

Net Worth: $54.3 billion, Source of Wealth: Oracle Corporation
Citizenship: United States

4. Amancio Ortega

Net Worth: $64.5 billion, Source of Wealth: Inditex Group
Citizenship: Spain

3. Warren Buffett

Net Worth: $72.7 billion, Source of Wealth: Berkshire Hathaway
Citizenship: United States

2. Carlos Slim

Net Worth: $77.1 billion, Source of Wealth: Telmex, Grupo Carso
Citizenship: Mexico

1. Bill Gates

Net Worth: $79.2 billion, Source of Wealth: Microsoft
Citizenship: United States

The World's Billionaires 2015 edition was the 29th annual ranking of The World's Billionaires by Forbes magazine. The list estimated the net worth of the world's richest people. The new list was released online on March 2, 2015.