Home / 28,479,743.66-39,302,234.96-15,427,002.59

Finding the Fourth Proportional to 28,479,743.66, 39,302,234.96 and 15,427,002.59

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Solution

The fourth proportional to 28,479,743.66, 39,302,234.96 and 15,427,002.59 is: 21,289,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479,743.66 : 39,302,234.96 = 15,427,002.59 : x
  2. Step 2: Convert to fraction form
    28,479,743.66/39,302,234.96 = 15,427,002.59/x
  3. Step 3: Cross multiply
    28,479,743.66x = 39,302,234.96 × 15,427,002.59
  4. Step 4: Simplify right side
    28,479,743.66x = 606,315,680,520,708.50
  5. Step 5: Solve for x
    x = 606,315,680,520,708.50/28,479,743.66
  6. Step 6: Final answer
    x = 21,289,365.79

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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.