[bizzder]

I want to make my own alloy of Indium, Bismuth and Tin. Literature says that
51% In, 32.5% Bi and 16.5% Sn yields a eutectic alloy with a melting point of approx 140F.

Now, I want to create a large batch (2 pounds) of this alloy, and I believe the percentages
should be more precise than this. I tried to find more accurate numbers, but couldn't find anything.

The furthest I came was In12Bi4Sn4, which makes 51.24% In, 31.09 Bi, 17.66% Sn.

How do I change the the numbers to yield the correct percentages?