Home / 132,629,467.20-198,944,200.80-78,749,044.80

Finding the Fourth Proportional to 132,629,467.20, 198,944,200.80 and 78,749,044.80

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Solution

The fourth proportional to 132,629,467.20, 198,944,200.80 and 78,749,044.80 is: 118,123,567.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,629,467.20 : 198,944,200.80 = 78,749,044.80 : x
  2. Step 2: Convert to fraction form
    132,629,467.20/198,944,200.80 = 78,749,044.80/x
  3. Step 3: Cross multiply
    132,629,467.20x = 198,944,200.80 × 78,749,044.80
  4. Step 4: Simplify right side
    132,629,467.20x = 15,666,665,781,499,396
  5. Step 5: Solve for x
    x = 15,666,665,781,499,396/132,629,467.20
  6. Step 6: Final answer
    x = 118,123,567.20

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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.