Home / 408,109,126.15-612,100,586.97-149,263,815.43

Finding the Fourth Proportional to 408,109,126.15, 612,100,586.97 and 149,263,815.43

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Solution

The fourth proportional to 408,109,126.15, 612,100,586.97 and 149,263,815.43 is: 223,872,643.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,109,126.15 : 612,100,586.97 = 149,263,815.43 : x
  2. Step 2: Convert to fraction form
    408,109,126.15/612,100,586.97 = 149,263,815.43/x
  3. Step 3: Cross multiply
    408,109,126.15x = 612,100,586.97 × 149,263,815.43
  4. Step 4: Simplify right side
    408,109,126.15x = 91,364,469,036,181,328
  5. Step 5: Solve for x
    x = 91,364,469,036,181,328/408,109,126.15
  6. Step 6: Final answer
    x = 223,872,643.82

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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.