Home / 132,620,855.52-198,711,365.16-80,648,245.17

Finding the Fourth Proportional to 132,620,855.52, 198,711,365.16 and 80,648,245.17

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Solution

The fourth proportional to 132,620,855.52, 198,711,365.16 and 80,648,245.17 is: 120,838,633.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,620,855.52 : 198,711,365.16 = 80,648,245.17 : x
  2. Step 2: Convert to fraction form
    132,620,855.52/198,711,365.16 = 80,648,245.17/x
  3. Step 3: Cross multiply
    132,620,855.52x = 198,711,365.16 × 80,648,245.17
  4. Step 4: Simplify right side
    132,620,855.52x = 16,025,722,895,489,076
  5. Step 5: Solve for x
    x = 16,025,722,895,489,076/132,620,855.52
  6. Step 6: Final answer
    x = 120,838,633.05

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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.