Home / 80,109,000.60-120,163,500.90-74,734,229.40

Finding the Fourth Proportional to 80,109,000.60, 120,163,500.90 and 74,734,229.40

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Solution

The fourth proportional to 80,109,000.60, 120,163,500.90 and 74,734,229.40 is: 112,101,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,109,000.60 : 120,163,500.90 = 74,734,229.40 : x
  2. Step 2: Convert to fraction form
    80,109,000.60/120,163,500.90 = 74,734,229.40/x
  3. Step 3: Cross multiply
    80,109,000.60x = 120,163,500.90 × 74,734,229.40
  4. Step 4: Simplify right side
    80,109,000.60x = 8,980,326,641,767,708
  5. Step 5: Solve for x
    x = 8,980,326,641,767,708/80,109,000.60
  6. Step 6: Final answer
    x = 112,101,344.10

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1.5x scale

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.