Home / 20,639,714.68-28,482,824.48-11,347,442.86

Finding the Fourth Proportional to 20,639,714.68, 28,482,824.48 and 11,347,442.86

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Solution

The fourth proportional to 20,639,714.68, 28,482,824.48 and 11,347,442.86 is: 15,659,481.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639,714.68 : 28,482,824.48 = 11,347,442.86 : x
  2. Step 2: Convert to fraction form
    20,639,714.68/28,482,824.48 = 11,347,442.86/x
  3. Step 3: Cross multiply
    20,639,714.68x = 28,482,824.48 × 11,347,442.86
  4. Step 4: Simplify right side
    20,639,714.68x = 323,207,223,278,209.19
  5. Step 5: Solve for x
    x = 323,207,223,278,209.19/20,639,714.68
  6. Step 6: Final answer
    x = 15,659,481.16

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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.