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If an athelete were somehow scaled up pr...

If an athelete were somehow scaled up proportionally to twice the original size, would he be stronger of weaker?

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If an athelets is scaled up proportionally to twice the original size, he would become four time stronger than before. This is because his bones and muscles increase by a factor of two and the cross-sectional area increases by a factor of four. Now he can lift a maximum load four times as heavy as before. Because volume and weight grow as the cube of linear enlargement, therefore, his volume and weight become 8 times as much as before.
Having strenght four times while carrying weight eight times, the ratio of strength to weight becomes half to its former value. this means that if he could just lift his own weight before, he could now lift only half his new weight, while his actual strength would increase. Therefore, his strength to weight ratio would-decreases. it means, in relation to his weight, he would be weaker.
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