Home / 80,919,487.30-121,379,230.95-80,352,616.90

Finding the Fourth Proportional to 80,919,487.30, 121,379,230.95 and 80,352,616.90

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Solution

The fourth proportional to 80,919,487.30, 121,379,230.95 and 80,352,616.90 is: 120,528,925.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,919,487.30 : 121,379,230.95 = 80,352,616.90 : x
  2. Step 2: Convert to fraction form
    80,919,487.30/121,379,230.95 = 80,352,616.90/x
  3. Step 3: Cross multiply
    80,919,487.30x = 121,379,230.95 × 80,352,616.90
  4. Step 4: Simplify right side
    80,919,487.30x = 9,753,138,844,141,974
  5. Step 5: Solve for x
    x = 9,753,138,844,141,974/80,919,487.30
  6. Step 6: Final answer
    x = 120,528,925.35

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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.