This building is four times as high as that small one 的同义句

This building is four times as high as that small one = 这幢楼的高度是另一幢的4倍.
This building is 3 times higher than that one = 这幢楼比另一幢高3倍.
This building is four times the height of that one = 这幢高楼是另一幢的4倍.
其实这一题不单考英语,也在考汉语.
2是1的多少倍?
2比1多多少倍?
上面这两句估计还有N多人搞不清楚,这个清楚了的话,英语也就好理解得多.