Finding the Fourth Proportional to 472,392,201.60, 709,344,129.60 and 319,715,107.20
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Solution
The fourth proportional to 472,392,201.60, 709,344,129.60 and 319,715,107.20 is: 480,084,204.75
Step by Step Solution
- Step 1: Write the proportion equation
472,392,201.60 : 709,344,129.60 = 319,715,107.20 : x - Step 2: Convert to fraction form
472,392,201.60/709,344,129.60 = 319,715,107.20/x - Step 3: Cross multiply
472,392,201.60x = 709,344,129.60 × 319,715,107.20 - Step 4: Simplify right side
472,392,201.60x = 226,788,034,436,754,688 - Step 5: Solve for x
x = 226,788,034,436,754,688/472,392,201.60 - Step 6: Final answer
x = 480,084,204.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.