Finding the Fourth Proportional to 731,246,167.55, 1,009,121,627.56 and 396,718,672.68
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Solution
The fourth proportional to 731,246,167.55, 1,009,121,627.56 and 396,718,672.68 is: 547,472,807.96
Step by Step Solution
- Step 1: Write the proportion equation
731,246,167.55 : 1,009,121,627.56 = 396,718,672.68 : x - Step 2: Convert to fraction form
731,246,167.55/1,009,121,627.56 = 396,718,672.68/x - Step 3: Cross multiply
731,246,167.55x = 1,009,121,627.56 × 396,718,672.68 - Step 4: Simplify right side
731,246,167.55x = 400,337,392,658,284,480 - Step 5: Solve for x
x = 400,337,392,658,284,480/731,246,167.55 - Step 6: Final answer
x = 547,472,807.96
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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.