Home / 20,672,499.22-28,529,694.78-11,970,823.52

Finding the Fourth Proportional to 20,672,499.22, 28,529,694.78 and 11,970,823.52

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Solution

The fourth proportional to 20,672,499.22, 28,529,694.78 and 11,970,823.52 is: 16,520,689.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,499.22 : 28,529,694.78 = 11,970,823.52 : x
  2. Step 2: Convert to fraction form
    20,672,499.22/28,529,694.78 = 11,970,823.52/x
  3. Step 3: Cross multiply
    20,672,499.22x = 28,529,694.78 × 11,970,823.52
  4. Step 4: Simplify right side
    20,672,499.22x = 341,523,941,290,845.25
  5. Step 5: Solve for x
    x = 341,523,941,290,845.25/20,672,499.22
  6. Step 6: Final answer
    x = 16,520,689.52

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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.