Home / 87,492,742.40-131,223,367.20-55,086,651.20

Finding the Fourth Proportional to 87,492,742.40, 131,223,367.20 and 55,086,651.20

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Solution

The fourth proportional to 87,492,742.40, 131,223,367.20 and 55,086,651.20 is: 82,620,062.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,492,742.40 : 131,223,367.20 = 55,086,651.20 : x
  2. Step 2: Convert to fraction form
    87,492,742.40/131,223,367.20 = 55,086,651.20/x
  3. Step 3: Cross multiply
    87,492,742.40x = 131,223,367.20 × 55,086,651.20
  4. Step 4: Simplify right side
    87,492,742.40x = 7,228,655,858,235,921
  5. Step 5: Solve for x
    x = 7,228,655,858,235,921/87,492,742.40
  6. Step 6: Final answer
    x = 82,620,062.65

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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.