Home / 77,002,811.60-115,448,230.20-31,541,205.20

Finding the Fourth Proportional to 77,002,811.60, 115,448,230.20 and 31,541,205.20

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Solution

The fourth proportional to 77,002,811.60, 115,448,230.20 and 31,541,205.20 is: 47,288,874.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,002,811.60 : 115,448,230.20 = 31,541,205.20 : x
  2. Step 2: Convert to fraction form
    77,002,811.60/115,448,230.20 = 31,541,205.20/x
  3. Step 3: Cross multiply
    77,002,811.60x = 115,448,230.20 × 31,541,205.20
  4. Step 4: Simplify right side
    77,002,811.60x = 3,641,376,318,715,037
  5. Step 5: Solve for x
    x = 3,641,376,318,715,037/77,002,811.60
  6. Step 6: Final answer
    x = 47,288,874.82

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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.