Home / 80,486,114.80-120,729,172.20-74,268,255.10

Finding the Fourth Proportional to 80,486,114.80, 120,729,172.20 and 74,268,255.10

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Solution

The fourth proportional to 80,486,114.80, 120,729,172.20 and 74,268,255.10 is: 111,402,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,486,114.80 : 120,729,172.20 = 74,268,255.10 : x
  2. Step 2: Convert to fraction form
    80,486,114.80/120,729,172.20 = 74,268,255.10/x
  3. Step 3: Cross multiply
    80,486,114.80x = 120,729,172.20 × 74,268,255.10
  4. Step 4: Simplify right side
    80,486,114.80x = 8,966,344,958,961,428
  5. Step 5: Solve for x
    x = 8,966,344,958,961,428/80,486,114.80
  6. Step 6: Final answer
    x = 111,402,382.65

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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.