Home / 140,413,879.32-193,770,099.42-78,534,217.68

Finding the Fourth Proportional to 140,413,879.32, 193,770,099.42 and 78,534,217.68

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Solution

The fourth proportional to 140,413,879.32, 193,770,099.42 and 78,534,217.68 is: 108,376,630.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,413,879.32 : 193,770,099.42 = 78,534,217.68 : x
  2. Step 2: Convert to fraction form
    140,413,879.32/193,770,099.42 = 78,534,217.68/x
  3. Step 3: Cross multiply
    140,413,879.32x = 193,770,099.42 × 78,534,217.68
  4. Step 4: Simplify right side
    140,413,879.32x = 15,217,583,167,725,522
  5. Step 5: Solve for x
    x = 15,217,583,167,725,522/140,413,879.32
  6. Step 6: Final answer
    x = 108,376,630.87

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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.