Weights of MUTO's, King Ghidorah and Biollante (ESTIMATED)

(THIS IS JUST FAN SPECULATION, NOTHING IS CONFIRMED, EVERYHTING WAS ESTIMATED ON HEIGHT ONLY)

I was in Maths and I was really bored, so I started thinking about Godzilla 2014, so i said to myself why not have some fun, and calculate the MUTO's weights. So i used Godzilla's HEIGHT as a baseline, if he is 355 ft tall and weighs 90 000 tons what would something 300 ft tall weight. So i divided 355 by 300 and got 1.183333333333333. So then I divided 90 000 by 1.18333 etc. and got 76 056 tons for the Female MUTO.

The Male MUTO I estimated at 181 ft, so i followed the same process (except the number i got when the 2 heights were divided were different), and the Male is estimated at around 46 000 tons.

Then i thought about the sequel and now estimated Biollante, for me Biollante will be 413 ft, so i followed the same proccess except i multiply 90 000 tons by the number i got when i divided the 2 heights, because Biollante is taller than Godzilla. I got 104 573 tons but considering Biollante's overall mass, i put it at 155 000 tons+.

Now for King Ghidorah, he is for me 462 ft, i followed the same process as Biollante and got 117 126 tons.

Remember this is just fan speculation and these for me just give a rough idea of each of their weights, they could easily be off a few thousand tons, because Biollante is the only monster i considered overall mass, the rest were based on height.

Post your opinions below as always :)