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Finding the Third Proportional to 12,996,104 and 20,204,918

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Solution

The third proportional to 12,996,104 and 20,204,918 is: 31,412,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996,104 : 20,204,918 = 20,204,918 : x
  2. Step 2: Convert to fraction form
    12,996,104/20,204,918 = 20,204,918/x
  3. Step 3: Cross multiply
    12,996,104x = 20,204,918 × 20,204,918
  4. Step 4: Simplify right side
    12,996,104x = 408,238,711,386,724
  5. Step 5: Solve for x
    x = 408,238,711,386,724/12,996,104
  6. Step 6: Final answer
    x = 31,412,391.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.