SOLUTION: if a/b > c/d then will ad > bc? Will this always be true?

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Question 1089707: if a/b > c/d then will ad > bc? Will this always be true?
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
For a,b,c,d real numbers, where b,d are nonzero, the answer is NO, it is NOT always true that ad > bc.
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If bd < 0 then you end up reversing the inequality (so in this case ad < bc).
Only when bd > 0 is it true that ad > bc.