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Finding the Third Proportional to 8,707,398 and 13,515,849

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Solution

The third proportional to 8,707,398 and 13,515,849 is: 20,979,651.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707,398 : 13,515,849 = 13,515,849 : x
  2. Step 2: Convert to fraction form
    8,707,398/13,515,849 = 13,515,849/x
  3. Step 3: Cross multiply
    8,707,398x = 13,515,849 × 13,515,849
  4. Step 4: Simplify right side
    8,707,398x = 182,678,174,190,801
  5. Step 5: Solve for x
    x = 182,678,174,190,801/8,707,398
  6. Step 6: Final answer
    x = 20,979,651.35

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.