Home / 66,472,614.25-91,747,513.16-38,979,399.85

Finding the Fourth Proportional to 66,472,614.25, 91,747,513.16 and 38,979,399.85

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Solution

The fourth proportional to 66,472,614.25, 91,747,513.16 and 38,979,399.85 is: 53,800,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472,614.25 : 91,747,513.16 = 38,979,399.85 : x
  2. Step 2: Convert to fraction form
    66,472,614.25/91,747,513.16 = 38,979,399.85/x
  3. Step 3: Cross multiply
    66,472,614.25x = 91,747,513.16 × 38,979,399.85
  4. Step 4: Simplify right side
    66,472,614.25x = 3,576,263,000,248,039
  5. Step 5: Solve for x
    x = 3,576,263,000,248,039/66,472,614.25
  6. Step 6: Final answer
    x = 53,800,546.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.