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Finding the Third Proportional to 4,018,569 and 8,681,719

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Solution

The third proportional to 4,018,569 and 8,681,719 is: 18,755,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,018,569 : 8,681,719 = 8,681,719 : x
  2. Step 2: Convert to fraction form
    4,018,569/8,681,719 = 8,681,719/x
  3. Step 3: Cross multiply
    4,018,569x = 8,681,719 × 8,681,719
  4. Step 4: Simplify right side
    4,018,569x = 75,372,244,794,961
  5. Step 5: Solve for x
    x = 75,372,244,794,961/4,018,569
  6. Step 6: Final answer
    x = 18,755,991.20

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.