Home / 170,747,961.60-256,083,609.60-78,543,144.96

Finding the Fourth Proportional to 170,747,961.60, 256,083,609.60 and 78,543,144.96

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Solution

The fourth proportional to 170,747,961.60, 256,083,609.60 and 78,543,144.96 is: 117,797,084.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,747,961.60 : 256,083,609.60 = 78,543,144.96 : x
  2. Step 2: Convert to fraction form
    170,747,961.60/256,083,609.60 = 78,543,144.96/x
  3. Step 3: Cross multiply
    170,747,961.60x = 256,083,609.60 × 78,543,144.96
  4. Step 4: Simplify right side
    170,747,961.60x = 20,113,612,070,692,844
  5. Step 5: Solve for x
    x = 20,113,612,070,692,844/170,747,961.60
  6. Step 6: Final answer
    x = 117,797,084.56

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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.