Genre: Fantasy
Book 1: Harry Potter - 12000000 ratings
Book 2: Lord of the Rings - 3000000 ratings
Book 3: The Hobbit - 3500000 ratings
Rank the following books within the given genres according to the number of Amazon ratings. Output the ranking in ascending order.
Fantasy book rankings according to the number of Amazon ratings:

1. Harry Potter - 12000000 ratings
2. The Hobbit - 3500000 ratings
3. Lord of the Rings - 3000000 ratings