Home / 90,815,612.24-136,265,933.64-39,690,988.04

Finding the Fourth Proportional to 90,815,612.24, 136,265,933.64 and 39,690,988.04

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Solution

The fourth proportional to 90,815,612.24, 136,265,933.64 and 39,690,988.04 is: 59,555,063.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,815,612.24 : 136,265,933.64 = 39,690,988.04 : x
  2. Step 2: Convert to fraction form
    90,815,612.24/136,265,933.64 = 39,690,988.04/x
  3. Step 3: Cross multiply
    90,815,612.24x = 136,265,933.64 × 39,690,988.04
  4. Step 4: Simplify right side
    90,815,612.24x = 5,408,529,542,364,673
  5. Step 5: Solve for x
    x = 5,408,529,542,364,673/90,815,612.24
  6. Step 6: Final answer
    x = 59,555,063.37

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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.