Home / 80,375,687.66-120,411,406.17-47,487,904.85

Finding the Fourth Proportional to 80,375,687.66, 120,411,406.17 and 47,487,904.85

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Solution

The fourth proportional to 80,375,687.66, 120,411,406.17 and 47,487,904.85 is: 71,141,977.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,375,687.66 : 120,411,406.17 = 47,487,904.85 : x
  2. Step 2: Convert to fraction form
    80,375,687.66/120,411,406.17 = 47,487,904.85/x
  3. Step 3: Cross multiply
    80,375,687.66x = 120,411,406.17 × 47,487,904.85
  4. Step 4: Simplify right side
    80,375,687.66x = 5,718,085,398,453,606
  5. Step 5: Solve for x
    x = 5,718,085,398,453,606/80,375,687.66
  6. Step 6: Final answer
    x = 71,141,977.94

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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.