Home / 261,151,268.80-391,279,005.60-124,542,500.80

Finding the Fourth Proportional to 261,151,268.80, 391,279,005.60 and 124,542,500.80

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Solution

The fourth proportional to 261,151,268.80, 391,279,005.60 and 124,542,500.80 is: 186,600,149.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,151,268.80 : 391,279,005.60 = 124,542,500.80 : x
  2. Step 2: Convert to fraction form
    261,151,268.80/391,279,005.60 = 124,542,500.80/x
  3. Step 3: Cross multiply
    261,151,268.80x = 391,279,005.60 × 124,542,500.80
  4. Step 4: Simplify right side
    261,151,268.80x = 48,730,865,867,961,208
  5. Step 5: Solve for x
    x = 48,730,865,867,961,208/261,151,268.80
  6. Step 6: Final answer
    x = 186,600,149.76

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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.