Home / 15,149,775.30-20,907,142.65-8,274,581.70

Finding the Fourth Proportional to 15,149,775.30, 20,907,142.65 and 8,274,581.70

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Solution

The fourth proportional to 15,149,775.30, 20,907,142.65 and 8,274,581.70 is: 11,419,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,149,775.30 : 20,907,142.65 = 8,274,581.70 : x
  2. Step 2: Convert to fraction form
    15,149,775.30/20,907,142.65 = 8,274,581.70/x
  3. Step 3: Cross multiply
    15,149,775.30x = 20,907,142.65 × 8,274,581.70
  4. Step 4: Simplify right side
    15,149,775.30x = 172,997,859,970,979.50
  5. Step 5: Solve for x
    x = 172,997,859,970,979.50/15,149,775.30
  6. Step 6: Final answer
    x = 11,419,170.02

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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.