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Finding the Third Proportional to 251,541,408.75 and 399,987,253.13

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Solution

The third proportional to 251,541,408.75 and 399,987,253.13 is: 636,037,634.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,541,408.75 : 399,987,253.13 = 399,987,253.13 : x
  2. Step 2: Convert to fraction form
    251,541,408.75/399,987,253.13 = 399,987,253.13/x
  3. Step 3: Cross multiply
    251,541,408.75x = 399,987,253.13 × 399,987,253.13
  4. Step 4: Simplify right side
    251,541,408.75x = 159,989,802,662,482,816
  5. Step 5: Solve for x
    x = 159,989,802,662,482,816/251,541,408.75
  6. Step 6: Final answer
    x = 636,037,634.75

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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.