Need help with a simple ratio queationa

[user6543]

1. 6^3y = 46656 then find the value of 2^2y?

2. If thhe ratio of p:q is 2:5 and the ratio of q:r is 15 : 13, find p : q : r.

3.find the third number when 121 is divided in the ratio of 4 : 4 : 5.

Please help me out with these questions.