Finding the Fourth Proportional to 386,468,634.20, 579,702,951.30 and 264,024,627.80
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Solution
The fourth proportional to 386,468,634.20, 579,702,951.30 and 264,024,627.80 is: 396,036,941.70
Step by Step Solution
- Step 1: Write the proportion equation
386,468,634.20 : 579,702,951.30 = 264,024,627.80 : x - Step 2: Convert to fraction form
386,468,634.20/579,702,951.30 = 264,024,627.80/x - Step 3: Cross multiply
386,468,634.20x = 579,702,951.30 × 264,024,627.80 - Step 4: Simplify right side
386,468,634.20x = 153,055,855,951,544,032 - Step 5: Solve for x
x = 153,055,855,951,544,032/386,468,634.20 - Step 6: Final answer
x = 396,036,941.70
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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.