Home / 80,120,718.60-120,181,077.90-74,745,947.40

Finding the Fourth Proportional to 80,120,718.60, 120,181,077.90 and 74,745,947.40

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Solution

The fourth proportional to 80,120,718.60, 120,181,077.90 and 74,745,947.40 is: 112,118,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,120,718.60 : 120,181,077.90 = 74,745,947.40 : x
  2. Step 2: Convert to fraction form
    80,120,718.60/120,181,077.90 = 74,745,947.40/x
  3. Step 3: Cross multiply
    80,120,718.60x = 120,181,077.90 × 74,745,947.40
  4. Step 4: Simplify right side
    80,120,718.60x = 8,983,048,527,188,704
  5. Step 5: Solve for x
    x = 8,983,048,527,188,704/80,120,718.60
  6. Step 6: Final answer
    x = 112,118,921.10

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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.