Home / 20,396,114.54-28,145,625.63-11,228,560.46

Finding the Fourth Proportional to 20,396,114.54, 28,145,625.63 and 11,228,560.46

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Solution

The fourth proportional to 20,396,114.54, 28,145,625.63 and 11,228,560.46 is: 15,494,856.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396,114.54 : 28,145,625.63 = 11,228,560.46 : x
  2. Step 2: Convert to fraction form
    20,396,114.54/28,145,625.63 = 11,228,560.46/x
  3. Step 3: Cross multiply
    20,396,114.54x = 28,145,625.63 × 11,228,560.46
  4. Step 4: Simplify right side
    20,396,114.54x = 316,034,859,070,980.62
  5. Step 5: Solve for x
    x = 316,034,859,070,980.62/20,396,114.54
  6. Step 6: Final answer
    x = 15,494,856.06

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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.