Home / 20,396,104.08-28,148,656.92-15,230,497.56

Finding the Fourth Proportional to 20,396,104.08, 28,148,656.92 and 15,230,497.56

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Solution

The fourth proportional to 20,396,104.08, 28,148,656.92 and 15,230,497.56 is: 21,019,604.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396,104.08 : 28,148,656.92 = 15,230,497.56 : x
  2. Step 2: Convert to fraction form
    20,396,104.08/28,148,656.92 = 15,230,497.56/x
  3. Step 3: Cross multiply
    20,396,104.08x = 28,148,656.92 × 15,230,497.56
  4. Step 4: Simplify right side
    20,396,104.08x = 428,718,050,537,337.19
  5. Step 5: Solve for x
    x = 428,718,050,537,337.19/20,396,104.08
  6. Step 6: Final answer
    x = 21,019,604.96

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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.