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Finding the Third Proportional to 4,003,918 and 8,637,691

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Solution

The third proportional to 4,003,918 and 8,637,691 is: 18,634,174.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,003,918 : 8,637,691 = 8,637,691 : x
  2. Step 2: Convert to fraction form
    4,003,918/8,637,691 = 8,637,691/x
  3. Step 3: Cross multiply
    4,003,918x = 8,637,691 × 8,637,691
  4. Step 4: Simplify right side
    4,003,918x = 74,609,705,811,481
  5. Step 5: Solve for x
    x = 74,609,705,811,481/4,003,918
  6. Step 6: Final answer
    x = 18,634,174.28

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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.