Home / 324,520,947.39-486,777,169.17-78,876,868.62

Finding the Fourth Proportional to 324,520,947.39, 486,777,169.17 and 78,876,868.62

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Solution

The fourth proportional to 324,520,947.39, 486,777,169.17 and 78,876,868.62 is: 118,314,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,520,947.39 : 486,777,169.17 = 78,876,868.62 : x
  2. Step 2: Convert to fraction form
    324,520,947.39/486,777,169.17 = 78,876,868.62/x
  3. Step 3: Cross multiply
    324,520,947.39x = 486,777,169.17 × 78,876,868.62
  4. Step 4: Simplify right side
    324,520,947.39x = 38,395,458,819,837,608
  5. Step 5: Solve for x
    x = 38,395,458,819,837,608/324,520,947.39
  6. Step 6: Final answer
    x = 118,314,269.48

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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.