Home / 408,254,145.25-612,384,761.88-131,905,388.95

Finding the Fourth Proportional to 408,254,145.25, 612,384,761.88 and 131,905,388.95

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Solution

The fourth proportional to 408,254,145.25, 612,384,761.88 and 131,905,388.95 is: 197,859,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,254,145.25 : 612,384,761.88 = 131,905,388.95 : x
  2. Step 2: Convert to fraction form
    408,254,145.25/612,384,761.88 = 131,905,388.95/x
  3. Step 3: Cross multiply
    408,254,145.25x = 612,384,761.88 × 131,905,388.95
  4. Step 4: Simplify right side
    408,254,145.25x = 80,776,850,203,726,256
  5. Step 5: Solve for x
    x = 80,776,850,203,726,256/408,254,145.25
  6. Step 6: Final answer
    x = 197,859,228.48

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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.