Home / 80,797,680.80-121,196,521.20-55,288,512.80

Finding the Fourth Proportional to 80,797,680.80, 121,196,521.20 and 55,288,512.80

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Solution

The fourth proportional to 80,797,680.80, 121,196,521.20 and 55,288,512.80 is: 82,932,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,797,680.80 : 121,196,521.20 = 55,288,512.80 : x
  2. Step 2: Convert to fraction form
    80,797,680.80/121,196,521.20 = 55,288,512.80/x
  3. Step 3: Cross multiply
    80,797,680.80x = 121,196,521.20 × 55,288,512.80
  4. Step 4: Simplify right side
    80,797,680.80x = 6,700,775,413,681,671
  5. Step 5: Solve for x
    x = 6,700,775,413,681,671/80,797,680.80
  6. Step 6: Final answer
    x = 82,932,769.20

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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.