Home / 132,213,643.20-198,320,464.80-80,481,470.40

Finding the Fourth Proportional to 132,213,643.20, 198,320,464.80 and 80,481,470.40

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Solution

The fourth proportional to 132,213,643.20, 198,320,464.80 and 80,481,470.40 is: 120,722,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,213,643.20 : 198,320,464.80 = 80,481,470.40 : x
  2. Step 2: Convert to fraction form
    132,213,643.20/198,320,464.80 = 80,481,470.40/x
  3. Step 3: Cross multiply
    132,213,643.20x = 198,320,464.80 × 80,481,470.40
  4. Step 4: Simplify right side
    132,213,643.20x = 15,961,122,617,515,444
  5. Step 5: Solve for x
    x = 15,961,122,617,515,444/132,213,643.20
  6. Step 6: Final answer
    x = 120,722,205.60

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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.