Home / 28,317,480.12-39,079,289.16-15,928,151.85

Finding the Fourth Proportional to 28,317,480.12, 39,079,289.16 and 15,928,151.85

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Solution

The fourth proportional to 28,317,480.12, 39,079,289.16 and 15,928,151.85 is: 21,981,505.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317,480.12 : 39,079,289.16 = 15,928,151.85 : x
  2. Step 2: Convert to fraction form
    28,317,480.12/39,079,289.16 = 15,928,151.85/x
  3. Step 3: Cross multiply
    28,317,480.12x = 39,079,289.16 × 15,928,151.85
  4. Step 4: Simplify right side
    28,317,480.12x = 622,460,851,930,538.88
  5. Step 5: Solve for x
    x = 622,460,851,930,538.88/28,317,480.12
  6. Step 6: Final answer
    x = 21,981,505.74

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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.