Home / 77,590,045.50-129,311,331.75

Finding the Third Proportional to 77,590,045.50 and 129,311,331.75

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Solution

The third proportional to 77,590,045.50 and 129,311,331.75 is: 215,509,868.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,590,045.50 : 129,311,331.75 = 129,311,331.75 : x
  2. Step 2: Convert to fraction form
    77,590,045.50/129,311,331.75 = 129,311,331.75/x
  3. Step 3: Cross multiply
    77,590,045.50x = 129,311,331.75 × 129,311,331.75
  4. Step 4: Simplify right side
    77,590,045.50x = 16,721,420,518,958,558
  5. Step 5: Solve for x
    x = 16,721,420,518,958,558/77,590,045.50
  6. Step 6: Final answer
    x = 215,509,868.71

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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.