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Finding the Third Proportional to 72,717,727 and 161,577,769

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Solution

The third proportional to 72,717,727 and 161,577,769 is: 359,023,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,717,727 : 161,577,769 = 161,577,769 : x
  2. Step 2: Convert to fraction form
    72,717,727/161,577,769 = 161,577,769/x
  3. Step 3: Cross multiply
    72,717,727x = 161,577,769 × 161,577,769
  4. Step 4: Simplify right side
    72,717,727x = 26,107,375,435,017,360
  5. Step 5: Solve for x
    x = 26,107,375,435,017,360/72,717,727
  6. Step 6: Final answer
    x = 359,023,535.42

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.