Home / 90,439,687.80-135,660,351.78-25,743,467.42

Finding the Fourth Proportional to 90,439,687.80, 135,660,351.78 and 25,743,467.42

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Solution

The fourth proportional to 90,439,687.80, 135,660,351.78 and 25,743,467.42 is: 38,615,434.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,439,687.80 : 135,660,351.78 = 25,743,467.42 : x
  2. Step 2: Convert to fraction form
    90,439,687.80/135,660,351.78 = 25,743,467.42/x
  3. Step 3: Cross multiply
    90,439,687.80x = 135,660,351.78 × 25,743,467.42
  4. Step 4: Simplify right side
    90,439,687.80x = 3,492,367,846,234,169.50
  5. Step 5: Solve for x
    x = 3,492,367,846,234,169.50/90,439,687.80
  6. Step 6: Final answer
    x = 38,615,434.56

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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.