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Finding the Third Proportional to 3,998,398 and 8,635,067

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Solution

The third proportional to 3,998,398 and 8,635,067 is: 18,648,564.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,998,398 : 8,635,067 = 8,635,067 : x
  2. Step 2: Convert to fraction form
    3,998,398/8,635,067 = 8,635,067/x
  3. Step 3: Cross multiply
    3,998,398x = 8,635,067 × 8,635,067
  4. Step 4: Simplify right side
    3,998,398x = 74,564,382,094,489
  5. Step 5: Solve for x
    x = 74,564,382,094,489/3,998,398
  6. Step 6: Final answer
    x = 18,648,564.27

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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.