Home / 80,876,108.10-121,314,162.15-80,372,223.30

Finding the Fourth Proportional to 80,876,108.10, 121,314,162.15 and 80,372,223.30

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Solution

The fourth proportional to 80,876,108.10, 121,314,162.15 and 80,372,223.30 is: 120,558,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,876,108.10 : 121,314,162.15 = 80,372,223.30 : x
  2. Step 2: Convert to fraction form
    80,876,108.10/121,314,162.15 = 80,372,223.30/x
  3. Step 3: Cross multiply
    80,876,108.10x = 121,314,162.15 × 80,372,223.30
  4. Step 4: Simplify right side
    80,876,108.10x = 9,750,288,929,772,208
  5. Step 5: Solve for x
    x = 9,750,288,929,772,208/80,876,108.10
  6. Step 6: Final answer
    x = 120,558,334.95

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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.