Home / 132,192,040.20-198,288,060.30-128,412,904.20

Finding the Fourth Proportional to 132,192,040.20, 198,288,060.30 and 128,412,904.20

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Solution

The fourth proportional to 132,192,040.20, 198,288,060.30 and 128,412,904.20 is: 192,619,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,192,040.20 : 198,288,060.30 = 128,412,904.20 : x
  2. Step 2: Convert to fraction form
    132,192,040.20/198,288,060.30 = 128,412,904.20/x
  3. Step 3: Cross multiply
    132,192,040.20x = 198,288,060.30 × 128,412,904.20
  4. Step 4: Simplify right side
    132,192,040.20x = 25,462,745,691,307,724
  5. Step 5: Solve for x
    x = 25,462,745,691,307,724/132,192,040.20
  6. Step 6: Final answer
    x = 192,619,356.30

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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.