Insert 4 geometric means between `4/9 and (27)/8`.

Insert 4 geometric means between 6 and 192.

Insert 5 arithmetic means between 8 and 26.

Insert 6 arithmetic means between 3 and 24.

Insert 3 arithmetic means between : 5 and 21.

The geometric mean between -9 and -16 is

Insert 10 arithmetic means between 2 and 57.

Insert 6 harmonic means between 3 and (6)/(23)

Insert 3 arithmetic means between : 3 and 15.

Insert five geimetrec means between (1)/(3) and 9 and verify that their product is the fifth power of the geometric mean between (1)/(3) and 9.