Home / 25,549,789.70-38,324,686.07-20,408,146.43

Finding the Fourth Proportional to 25,549,789.70, 38,324,686.07 and 20,408,146.43

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Solution

The fourth proportional to 25,549,789.70, 38,324,686.07 and 20,408,146.43 is: 30,612,220.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,549,789.70 : 38,324,686.07 = 20,408,146.43 : x
  2. Step 2: Convert to fraction form
    25,549,789.70/38,324,686.07 = 20,408,146.43/x
  3. Step 3: Cross multiply
    25,549,789.70x = 38,324,686.07 × 20,408,146.43
  4. Step 4: Simplify right side
    25,549,789.70x = 782,135,805,059,738.12
  5. Step 5: Solve for x
    x = 782,135,805,059,738.12/25,549,789.70
  6. Step 6: Final answer
    x = 30,612,220.85

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1.5x scale

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.