Home / 80,123,979.91-120,185,782.98-52,631,436.73

Finding the Fourth Proportional to 80,123,979.91, 120,185,782.98 and 52,631,436.73

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Solution

The fourth proportional to 80,123,979.91, 120,185,782.98 and 52,631,436.73 is: 78,947,032.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,123,979.91 : 120,185,782.98 = 52,631,436.73 : x
  2. Step 2: Convert to fraction form
    80,123,979.91/120,185,782.98 = 52,631,436.73/x
  3. Step 3: Cross multiply
    80,123,979.91x = 120,185,782.98 × 52,631,436.73
  4. Step 4: Simplify right side
    80,123,979.91x = 6,325,550,432,156,452
  5. Step 5: Solve for x
    x = 6,325,550,432,156,452/80,123,979.91
  6. Step 6: Final answer
    x = 78,947,032.33

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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.