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Finding the Third Proportional to 87,900,392 and 129,310,266

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Solution

The third proportional to 87,900,392 and 129,310,266 is: 190,228,331.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,900,392 : 129,310,266 = 129,310,266 : x
  2. Step 2: Convert to fraction form
    87,900,392/129,310,266 = 129,310,266/x
  3. Step 3: Cross multiply
    87,900,392x = 129,310,266 × 129,310,266
  4. Step 4: Simplify right side
    87,900,392x = 16,721,144,892,990,756
  5. Step 5: Solve for x
    x = 16,721,144,892,990,756/87,900,392
  6. Step 6: Final answer
    x = 190,228,331.33

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.