Home / 90,929,245.71-136,480,098.87-56,280,839.13

Finding the Fourth Proportional to 90,929,245.71, 136,480,098.87 and 56,280,839.13

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Solution

The fourth proportional to 90,929,245.71, 136,480,098.87 and 56,280,839.13 is: 84,474,631.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,929,245.71 : 136,480,098.87 = 56,280,839.13 : x
  2. Step 2: Convert to fraction form
    90,929,245.71/136,480,098.87 = 56,280,839.13/x
  3. Step 3: Cross multiply
    90,929,245.71x = 136,480,098.87 × 56,280,839.13
  4. Step 4: Simplify right side
    90,929,245.71x = 7,681,214,488,948,965
  5. Step 5: Solve for x
    x = 7,681,214,488,948,965/90,929,245.71
  6. Step 6: Final answer
    x = 84,474,631.12

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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.