Home / 66,472,640.72-91,747,549.70-38,979,426.32

Finding the Fourth Proportional to 66,472,640.72, 91,747,549.70 and 38,979,426.32

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Solution

The fourth proportional to 66,472,640.72, 91,747,549.70 and 38,979,426.32 is: 53,800,583.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472,640.72 : 91,747,549.70 = 38,979,426.32 : x
  2. Step 2: Convert to fraction form
    66,472,640.72/91,747,549.70 = 38,979,426.32/x
  3. Step 3: Cross multiply
    66,472,640.72x = 91,747,549.70 × 38,979,426.32
  4. Step 4: Simplify right side
    66,472,640.72x = 3,576,266,852,918,052.50
  5. Step 5: Solve for x
    x = 3,576,266,852,918,052.50/66,472,640.72
  6. Step 6: Final answer
    x = 53,800,583.43

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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.