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Finding the Third Proportional to 77,592,468 and 129,315,572

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Solution

The third proportional to 77,592,468 and 129,315,572 is: 215,517,273.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,592,468 : 129,315,572 = 129,315,572 : x
  2. Step 2: Convert to fraction form
    77,592,468/129,315,572 = 129,315,572/x
  3. Step 3: Cross multiply
    77,592,468x = 129,315,572 × 129,315,572
  4. Step 4: Simplify right side
    77,592,468x = 16,722,517,161,687,184
  5. Step 5: Solve for x
    x = 16,722,517,161,687,184/77,592,468
  6. Step 6: Final answer
    x = 215,517,273.68

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.