Home / 84,465,217.80-126,745,755.30-45,603,151.92

Finding the Fourth Proportional to 84,465,217.80, 126,745,755.30 and 45,603,151.92

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Solution

The fourth proportional to 84,465,217.80, 126,745,755.30 and 45,603,151.92 is: 68,430,604.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,465,217.80 : 126,745,755.30 = 45,603,151.92 : x
  2. Step 2: Convert to fraction form
    84,465,217.80/126,745,755.30 = 45,603,151.92/x
  3. Step 3: Cross multiply
    84,465,217.80x = 126,745,755.30 × 45,603,151.92
  4. Step 4: Simplify right side
    84,465,217.80x = 5,780,005,934,161,045
  5. Step 5: Solve for x
    x = 5,780,005,934,161,045/84,465,217.80
  6. Step 6: Final answer
    x = 68,430,604.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.