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Finding the Third Proportional to 8,678,542 and 18,663,206

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Solution

The third proportional to 8,678,542 and 18,663,206 is: 40,135,227.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678,542 : 18,663,206 = 18,663,206 : x
  2. Step 2: Convert to fraction form
    8,678,542/18,663,206 = 18,663,206/x
  3. Step 3: Cross multiply
    8,678,542x = 18,663,206 × 18,663,206
  4. Step 4: Simplify right side
    8,678,542x = 348,315,258,198,436
  5. Step 5: Solve for x
    x = 348,315,258,198,436/8,678,542
  6. Step 6: Final answer
    x = 40,135,227.58

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.