Home / 187,287,945.76-280,372,198.72-113,287,778.96

Finding the Fourth Proportional to 187,287,945.76, 280,372,198.72 and 113,287,778.96

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Solution

The fourth proportional to 187,287,945.76, 280,372,198.72 and 113,287,778.96 is: 169,593,101.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,287,945.76 : 280,372,198.72 = 113,287,778.96 : x
  2. Step 2: Convert to fraction form
    187,287,945.76/280,372,198.72 = 113,287,778.96/x
  3. Step 3: Cross multiply
    187,287,945.76x = 280,372,198.72 × 113,287,778.96
  4. Step 4: Simplify right side
    187,287,945.76x = 31,762,743,675,120,556
  5. Step 5: Solve for x
    x = 31,762,743,675,120,556/187,287,945.76
  6. Step 6: Final answer
    x = 169,593,101.93

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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.