Home / 71,543,151.60-107,314,727.40-66,016,165.20

Finding the Fourth Proportional to 71,543,151.60, 107,314,727.40 and 66,016,165.20

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Solution

The fourth proportional to 71,543,151.60, 107,314,727.40 and 66,016,165.20 is: 99,024,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,543,151.60 : 107,314,727.40 = 66,016,165.20 : x
  2. Step 2: Convert to fraction form
    71,543,151.60/107,314,727.40 = 66,016,165.20/x
  3. Step 3: Cross multiply
    71,543,151.60x = 107,314,727.40 × 66,016,165.20
  4. Step 4: Simplify right side
    71,543,151.60x = 7,084,506,772,431,367
  5. Step 5: Solve for x
    x = 7,084,506,772,431,367/71,543,151.60
  6. Step 6: Final answer
    x = 99,024,247.80

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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.