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Finding the Third Proportional to 77,592,459 and 129,315,558

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Solution

The third proportional to 77,592,459 and 129,315,558 is: 215,517,252.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,592,459 : 129,315,558 = 129,315,558 : x
  2. Step 2: Convert to fraction form
    77,592,459/129,315,558 = 129,315,558/x
  3. Step 3: Cross multiply
    77,592,459x = 129,315,558 × 129,315,558
  4. Step 4: Simplify right side
    77,592,459x = 16,722,513,540,851,364
  5. Step 5: Solve for x
    x = 16,722,513,540,851,364/77,592,459
  6. Step 6: Final answer
    x = 215,517,252.02

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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.