Home / 87,366,855.90-131,050,283.85-85,666,244.70

Finding the Fourth Proportional to 87,366,855.90, 131,050,283.85 and 85,666,244.70

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Solution

The fourth proportional to 87,366,855.90, 131,050,283.85 and 85,666,244.70 is: 128,499,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,366,855.90 : 131,050,283.85 = 85,666,244.70 : x
  2. Step 2: Convert to fraction form
    87,366,855.90/131,050,283.85 = 85,666,244.70/x
  3. Step 3: Cross multiply
    87,366,855.90x = 131,050,283.85 × 85,666,244.70
  4. Step 4: Simplify right side
    87,366,855.90x = 11,226,585,684,298,558
  5. Step 5: Solve for x
    x = 11,226,585,684,298,558/87,366,855.90
  6. Step 6: Final answer
    x = 128,499,367.05

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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.