Home / 87,138,068.55-120,252,690.96-47,447,775.18

Finding the Fourth Proportional to 87,138,068.55, 120,252,690.96 and 47,447,775.18

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Solution

The fourth proportional to 87,138,068.55, 120,252,690.96 and 47,447,775.18 is: 65,479,103.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,138,068.55 : 120,252,690.96 = 47,447,775.18 : x
  2. Step 2: Convert to fraction form
    87,138,068.55/120,252,690.96 = 47,447,775.18/x
  3. Step 3: Cross multiply
    87,138,068.55x = 120,252,690.96 × 47,447,775.18
  4. Step 4: Simplify right side
    87,138,068.55x = 5,705,722,645,460,098
  5. Step 5: Solve for x
    x = 5,705,722,645,460,098/87,138,068.55
  6. Step 6: Final answer
    x = 65,479,103.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.