Adam can make 15 x 3 = <<15*3=45>>45 figurines out of the blocks of basswood.
He can also make 3 x 2 = <<3*2=6>>6 figurines out of a block of Aspen wood.
So, he can make 20 x 6 = <<20*6=120>>120 figurines out of all the blocks of Aspen wood.
He can also make 20 x 4 = <<20*4=80>>80 figurines out of all the blocks of butternut wood.
Therefore, Adam can make a total of 120 + 80 + 45 = <<120+80+45=245>>245 figurines using all the blocks of wood.
#### 245