Finding the Fourth Proportional to 513,404,611.95, 765,790,402.54 and 466,272,689.09
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Solution
The fourth proportional to 513,404,611.95, 765,790,402.54 and 466,272,689.09 is: 695,488,785.95
Step by Step Solution
- Step 1: Write the proportion equation
513,404,611.95 : 765,790,402.54 = 466,272,689.09 : x - Step 2: Convert to fraction form
513,404,611.95/765,790,402.54 = 466,272,689.09/x - Step 3: Cross multiply
513,404,611.95x = 765,790,402.54 × 466,272,689.09 - Step 4: Simplify right side
513,404,611.95x = 357,067,150,266,644,736 - Step 5: Solve for x
x = 357,067,150,266,644,736/513,404,611.95 - Step 6: Final answer
x = 695,488,785.95
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.