Home / 408,581,140.59-612,867,672.18-187,189,682.31

Finding the Fourth Proportional to 408,581,140.59, 612,867,672.18 and 187,189,682.31

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Solution

The fourth proportional to 408,581,140.59, 612,867,672.18 and 187,189,682.31 is: 280,782,673.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,581,140.59 : 612,867,672.18 = 187,189,682.31 : x
  2. Step 2: Convert to fraction form
    408,581,140.59/612,867,672.18 = 187,189,682.31/x
  3. Step 3: Cross multiply
    408,581,140.59x = 612,867,672.18 × 187,189,682.31
  4. Step 4: Simplify right side
    408,581,140.59x = 114,722,504,853,443,424
  5. Step 5: Solve for x
    x = 114,722,504,853,443,424/408,581,140.59
  6. Step 6: Final answer
    x = 280,782,673.15

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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.