1) How much must the divorcing spouse pay?
2) What if the richer spouse was the wife? How much would she have to pay?
A. Finkle, Langhorne, PA
For all practical questions regarding this topic, one should consult a competent Orthodox Beis Din.
1) One should address this question to a Beis Din that deals with divorces. This is because determining this amount is the subject of much argument among the commentaries. [This argument is explained at length in Nisuin k'Hilchasam vo. 1, pgs 300-302.]
2) The Kesuvah, which one must pay when he gives his wife a Get, has nothing to do with a wife being richer or poorer. It is a document that a groom signs upon marriage, obligating himself to pay a certain amount of money upon divorce (regardless if his wife is richer or poorer).
Again, for all practical questions, please consult a competent Orthodox Beis Din.
All the best,