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Finding the Third Proportional to 242,963,952 and 391,251,987

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Solution

The third proportional to 242,963,952 and 391,251,987 is: 630,044,564.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,963,952 : 391,251,987 = 391,251,987 : x
  2. Step 2: Convert to fraction form
    242,963,952/391,251,987 = 391,251,987/x
  3. Step 3: Cross multiply
    242,963,952x = 391,251,987 × 391,251,987
  4. Step 4: Simplify right side
    242,963,952x = 153,078,117,331,448,160
  5. Step 5: Solve for x
    x = 153,078,117,331,448,160/242,963,952
  6. Step 6: Final answer
    x = 630,044,564.52

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.