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Finding the Third Proportional to 10,279,902 and 15,421,815

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Solution

The third proportional to 10,279,902 and 15,421,815 is: 23,135,665.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279,902 : 15,421,815 = 15,421,815 : x
  2. Step 2: Convert to fraction form
    10,279,902/15,421,815 = 15,421,815/x
  3. Step 3: Cross multiply
    10,279,902x = 15,421,815 × 15,421,815
  4. Step 4: Simplify right side
    10,279,902x = 237,832,377,894,225
  5. Step 5: Solve for x
    x = 237,832,377,894,225/10,279,902
  6. Step 6: Final answer
    x = 23,135,665.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.