Home / 13,660,917.22-20,491,375.74-5,143,164.58

Finding the Fourth Proportional to 13,660,917.22, 20,491,375.74 and 5,143,164.58

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Solution

The fourth proportional to 13,660,917.22, 20,491,375.74 and 5,143,164.58 is: 7,714,746.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660,917.22 : 20,491,375.74 = 5,143,164.58 : x
  2. Step 2: Convert to fraction form
    13,660,917.22/20,491,375.74 = 5,143,164.58/x
  3. Step 3: Cross multiply
    13,660,917.22x = 20,491,375.74 × 5,143,164.58
  4. Step 4: Simplify right side
    13,660,917.22x = 105,390,517,901,439.28
  5. Step 5: Solve for x
    x = 105,390,517,901,439.28/13,660,917.22
  6. Step 6: Final answer
    x = 7,714,746.84

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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.