Home / 66,472,418.32-91,747,242.72-38,979,203.92

Finding the Fourth Proportional to 66,472,418.32, 91,747,242.72 and 38,979,203.92

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Solution

The fourth proportional to 66,472,418.32, 91,747,242.72 and 38,979,203.92 is: 53,800,276.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472,418.32 : 91,747,242.72 = 38,979,203.92 : x
  2. Step 2: Convert to fraction form
    66,472,418.32/91,747,242.72 = 38,979,203.92/x
  3. Step 3: Cross multiply
    66,472,418.32x = 91,747,242.72 × 38,979,203.92
  4. Step 4: Simplify right side
    66,472,418.32x = 3,576,234,483,080,615.50
  5. Step 5: Solve for x
    x = 3,576,234,483,080,615.50/66,472,418.32
  6. Step 6: Final answer
    x = 53,800,276.47

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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.