Home / 8,591,458.47-12,895,286.39-3,131,830.35

Finding the Fourth Proportional to 8,591,458.47, 12,895,286.39 and 3,131,830.35

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Solution

The fourth proportional to 8,591,458.47, 12,895,286.39 and 3,131,830.35 is: 4,700,697.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591,458.47 : 12,895,286.39 = 3,131,830.35 : x
  2. Step 2: Convert to fraction form
    8,591,458.47/12,895,286.39 = 3,131,830.35/x
  3. Step 3: Cross multiply
    8,591,458.47x = 12,895,286.39 × 3,131,830.35
  4. Step 4: Simplify right side
    8,591,458.47x = 40,385,849,288,143.94
  5. Step 5: Solve for x
    x = 40,385,849,288,143.94/8,591,458.47
  6. Step 6: Final answer
    x = 4,700,697.73

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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.