No. 9: Christy Walton
Net Worth: $36.7 billion
Source of wealth: Wal-Mart
Wal-Mart Stores Inc heiress Christy Walton is the highest-ranking woman, in ninth place, at $36.7 billion. [Photo/Xinhua]
The world in photos (Feb 24-March 2)
The world in numbers: February
