Well, if you are dancing at a Major ballet company (ie. American Ballet Theater) you can be paid at least $100,000 or much, much more a year...
Ballet Dancers. Most dancers earn very little money, especially when you land a minor role in a production. Prima ballerina's have been known to earn hundreds of thousands, and even millions....
In ballet, a professional dancer will only make about £20 ($30USD) an hour.
A ballet dancer (one that dances for a company) doesn't earn very much. Approximately 33,000-44,000 per year only.
Like any other job, the salary varies depending on your level, work load, employer, etc.
$1,000,000,000,000,000,000,000,000,000,000,000,000