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Finding the Third Proportional to 72,568,750 and 156,681,610

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Solution

The third proportional to 72,568,750 and 156,681,610 is: 338,287,856.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,568,750 : 156,681,610 = 156,681,610 : x
  2. Step 2: Convert to fraction form
    72,568,750/156,681,610 = 156,681,610/x
  3. Step 3: Cross multiply
    72,568,750x = 156,681,610 × 156,681,610
  4. Step 4: Simplify right side
    72,568,750x = 24,549,126,912,192,100
  5. Step 5: Solve for x
    x = 24,549,126,912,192,100/72,568,750
  6. Step 6: Final answer
    x = 338,287,856.86

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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.