Home / 18,719,441.76-28,080,876.24-5,256,179.04

Finding the Fourth Proportional to 18,719,441.76, 28,080,876.24 and 5,256,179.04

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Solution

The fourth proportional to 18,719,441.76, 28,080,876.24 and 5,256,179.04 is: 7,884,749.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719,441.76 : 28,080,876.24 = 5,256,179.04 : x
  2. Step 2: Convert to fraction form
    18,719,441.76/28,080,876.24 = 5,256,179.04/x
  3. Step 3: Cross multiply
    18,719,441.76x = 28,080,876.24 × 5,256,179.04
  4. Step 4: Simplify right side
    18,719,441.76x = 147,598,113,117,522
  5. Step 5: Solve for x
    x = 147,598,113,117,522/18,719,441.76
  6. Step 6: Final answer
    x = 7,884,749.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.