Home / 80,254,820.10-120,382,230.15-52,513,599.90

Finding the Fourth Proportional to 80,254,820.10, 120,382,230.15 and 52,513,599.90

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Solution

The fourth proportional to 80,254,820.10, 120,382,230.15 and 52,513,599.90 is: 78,770,399.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,254,820.10 : 120,382,230.15 = 52,513,599.90 : x
  2. Step 2: Convert to fraction form
    80,254,820.10/120,382,230.15 = 52,513,599.90/x
  3. Step 3: Cross multiply
    80,254,820.10x = 120,382,230.15 × 52,513,599.90
  4. Step 4: Simplify right side
    80,254,820.10x = 6,321,704,269,166,817
  5. Step 5: Solve for x
    x = 6,321,704,269,166,817/80,254,820.10
  6. Step 6: Final answer
    x = 78,770,399.85

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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.