Finding the Fourth Proportional to 721,301,893.84, 995,396,930.76 and 408,029,404.24
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Solution
The fourth proportional to 721,301,893.84, 995,396,930.76 and 408,029,404.24 is: 563,080,757.32
Step by Step Solution
- Step 1: Write the proportion equation
721,301,893.84 : 995,396,930.76 = 408,029,404.24 : x - Step 2: Convert to fraction form
721,301,893.84/995,396,930.76 = 408,029,404.24/x - Step 3: Cross multiply
721,301,893.84x = 995,396,930.76 × 408,029,404.24 - Step 4: Simplify right side
721,301,893.84x = 406,151,216,640,327,360 - Step 5: Solve for x
x = 406,151,216,640,327,360/721,301,893.84 - Step 6: Final answer
x = 563,080,757.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.