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Finding the Third Proportional to 80,267,892 and 122,990,280

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Solution

The third proportional to 80,267,892 and 122,990,280 is: 188,451,553.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,267,892 : 122,990,280 = 122,990,280 : x
  2. Step 2: Convert to fraction form
    80,267,892/122,990,280 = 122,990,280/x
  3. Step 3: Cross multiply
    80,267,892x = 122,990,280 × 122,990,280
  4. Step 4: Simplify right side
    80,267,892x = 15,126,608,974,478,400
  5. Step 5: Solve for x
    x = 15,126,608,974,478,400/80,267,892
  6. Step 6: Final answer
    x = 188,451,553.89

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.