Home / 11,307,419.20-16,919,656.80-8,321,435.20

Finding the Fourth Proportional to 11,307,419.20, 16,919,656.80 and 8,321,435.20

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Solution

The fourth proportional to 11,307,419.20, 16,919,656.80 and 8,321,435.20 is: 12,451,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,307,419.20 : 16,919,656.80 = 8,321,435.20 : x
  2. Step 2: Convert to fraction form
    11,307,419.20/16,919,656.80 = 8,321,435.20/x
  3. Step 3: Cross multiply
    11,307,419.20x = 16,919,656.80 × 8,321,435.20
  4. Step 4: Simplify right side
    11,307,419.20x = 140,795,827,667,439.38
  5. Step 5: Solve for x
    x = 140,795,827,667,439.38/11,307,419.20
  6. Step 6: Final answer
    x = 12,451,632.44

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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.