Home / 57,121,517.19-85,685,031.42-18,782,182.47

Finding the Fourth Proportional to 57,121,517.19, 85,685,031.42 and 18,782,182.47

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Solution

The fourth proportional to 57,121,517.19, 85,685,031.42 and 18,782,182.47 is: 28,174,179.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121,517.19 : 85,685,031.42 = 18,782,182.47 : x
  2. Step 2: Convert to fraction form
    57,121,517.19/85,685,031.42 = 18,782,182.47/x
  3. Step 3: Cross multiply
    57,121,517.19x = 85,685,031.42 × 18,782,182.47
  4. Step 4: Simplify right side
    57,121,517.19x = 1,609,351,895,078,123.25
  5. Step 5: Solve for x
    x = 1,609,351,895,078,123.25/57,121,517.19
  6. Step 6: Final answer
    x = 28,174,179.79

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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.