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Finding the Third Proportional to 20,438,000 and 28,417,496

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Solution

The third proportional to 20,438,000 and 28,417,496 is: 39,512,382.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,438,000 : 28,417,496 = 28,417,496 : x
  2. Step 2: Convert to fraction form
    20,438,000/28,417,496 = 28,417,496/x
  3. Step 3: Cross multiply
    20,438,000x = 28,417,496 × 28,417,496
  4. Step 4: Simplify right side
    20,438,000x = 807,554,078,910,016
  5. Step 5: Solve for x
    x = 807,554,078,910,016/20,438,000
  6. Step 6: Final answer
    x = 39,512,382.76

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.