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Finding the Third Proportional to 10,215,554 and 15,234,742

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Solution

The third proportional to 10,215,554 and 15,234,742 is: 22,719,997.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215,554 : 15,234,742 = 15,234,742 : x
  2. Step 2: Convert to fraction form
    10,215,554/15,234,742 = 15,234,742/x
  3. Step 3: Cross multiply
    10,215,554x = 15,234,742 × 15,234,742
  4. Step 4: Simplify right side
    10,215,554x = 232,097,363,806,564
  5. Step 5: Solve for x
    x = 232,097,363,806,564/10,215,554
  6. Step 6: Final answer
    x = 22,719,997.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.