Home / 71,542,754.80-107,314,132.20-66,759,785.80

Finding the Fourth Proportional to 71,542,754.80, 107,314,132.20 and 66,759,785.80

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Solution

The fourth proportional to 71,542,754.80, 107,314,132.20 and 66,759,785.80 is: 100,139,678.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,542,754.80 : 107,314,132.20 = 66,759,785.80 : x
  2. Step 2: Convert to fraction form
    71,542,754.80/107,314,132.20 = 66,759,785.80/x
  3. Step 3: Cross multiply
    71,542,754.80x = 107,314,132.20 × 66,759,785.80
  4. Step 4: Simplify right side
    71,542,754.80x = 7,164,268,478,984,883
  5. Step 5: Solve for x
    x = 7,164,268,478,984,883/71,542,754.80
  6. Step 6: Final answer
    x = 100,139,678.70

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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.