Home / 87,377,380.12-120,583,680.66-47,687,084.08

Finding the Fourth Proportional to 87,377,380.12, 120,583,680.66 and 47,687,084.08

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Solution

The fourth proportional to 87,377,380.12, 120,583,680.66 and 47,687,084.08 is: 65,809,756.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,377,380.12 : 120,583,680.66 = 47,687,084.08 : x
  2. Step 2: Convert to fraction form
    87,377,380.12/120,583,680.66 = 47,687,084.08/x
  3. Step 3: Cross multiply
    87,377,380.12x = 120,583,680.66 × 47,687,084.08
  4. Step 4: Simplify right side
    87,377,380.12x = 5,750,284,118,309,290
  5. Step 5: Solve for x
    x = 5,750,284,118,309,290/87,377,380.12
  6. Step 6: Final answer
    x = 65,809,756.60

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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.