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Finding the Third Proportional to 8,527,388 and 13,120,439

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Solution

The third proportional to 8,527,388 and 13,120,439 is: 20,187,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,527,388 : 13,120,439 = 13,120,439 : x
  2. Step 2: Convert to fraction form
    8,527,388/13,120,439 = 13,120,439/x
  3. Step 3: Cross multiply
    8,527,388x = 13,120,439 × 13,120,439
  4. Step 4: Simplify right side
    8,527,388x = 172,145,919,552,721
  5. Step 5: Solve for x
    x = 172,145,919,552,721/8,527,388
  6. Step 6: Final answer
    x = 20,187,414.90

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.