Home / 66,472,640.22-91,747,549.01-38,979,425.82

Finding the Fourth Proportional to 66,472,640.22, 91,747,549.01 and 38,979,425.82

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Solution

The fourth proportional to 66,472,640.22, 91,747,549.01 and 38,979,425.82 is: 53,800,582.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472,640.22 : 91,747,549.01 = 38,979,425.82 : x
  2. Step 2: Convert to fraction form
    66,472,640.22/91,747,549.01 = 38,979,425.82/x
  3. Step 3: Cross multiply
    66,472,640.22x = 91,747,549.01 × 38,979,425.82
  4. Step 4: Simplify right side
    66,472,640.22x = 3,576,266,780,802,109.50
  5. Step 5: Solve for x
    x = 3,576,266,780,802,109.50/66,472,640.22
  6. Step 6: Final answer
    x = 53,800,582.75

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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.