There are 63 chickens, ducks and geese in Li Ming's family. The number of chickens accounts for 4 / 9 of the total. The ratio of ducks to geese is two to three. How many are Li Ming's chickens, ducks and geese?
Chicken = 63 * 4 / 9 = 28, 63-28 = 35, according to 2:3, 35 / (2 + 3) = 7, duck: 7 * 2 = 14, goose: 7 * 3 = 21