Home / 66,431,744.80-99,647,617.20-57,344,103.70

Finding the Fourth Proportional to 66,431,744.80, 99,647,617.20 and 57,344,103.70

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Solution

The fourth proportional to 66,431,744.80, 99,647,617.20 and 57,344,103.70 is: 86,016,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,431,744.80 : 99,647,617.20 = 57,344,103.70 : x
  2. Step 2: Convert to fraction form
    66,431,744.80/99,647,617.20 = 57,344,103.70/x
  3. Step 3: Cross multiply
    66,431,744.80x = 99,647,617.20 × 57,344,103.70
  4. Step 4: Simplify right side
    66,431,744.80x = 5,714,203,294,174,704
  5. Step 5: Solve for x
    x = 5,714,203,294,174,704/66,431,744.80
  6. Step 6: Final answer
    x = 86,016,155.55

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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.