Home / 120,940,603.20-166,890,840.48-68,722,391.52

Finding the Fourth Proportional to 120,940,603.20, 166,890,840.48 and 68,722,391.52

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Solution

The fourth proportional to 120,940,603.20, 166,890,840.48 and 68,722,391.52 is: 94,832,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,940,603.20 : 166,890,840.48 = 68,722,391.52 : x
  2. Step 2: Convert to fraction form
    120,940,603.20/166,890,840.48 = 68,722,391.52/x
  3. Step 3: Cross multiply
    120,940,603.20x = 166,890,840.48 × 68,722,391.52
  4. Step 4: Simplify right side
    120,940,603.20x = 11,469,137,680,568,424
  5. Step 5: Solve for x
    x = 11,469,137,680,568,424/120,940,603.20
  6. Step 6: Final answer
    x = 94,832,813.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.