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Finding the Third Proportional to 251,541,464 and 399,987,340

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Solution

The third proportional to 251,541,464 and 399,987,340 is: 636,037,771.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,541,464 : 399,987,340 = 399,987,340 : x
  2. Step 2: Convert to fraction form
    251,541,464/399,987,340 = 399,987,340/x
  3. Step 3: Cross multiply
    251,541,464x = 399,987,340 × 399,987,340
  4. Step 4: Simplify right side
    251,541,464x = 159,989,872,160,275,584
  5. Step 5: Solve for x
    x = 159,989,872,160,275,584/251,541,464
  6. Step 6: Final answer
    x = 636,037,771.33

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.