Home / 20,499,108.73-30,769,938.91-11,880,049.12

Finding the Fourth Proportional to 20,499,108.73, 30,769,938.91 and 11,880,049.12

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Solution

The fourth proportional to 20,499,108.73, 30,769,938.91 and 11,880,049.12 is: 17,832,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,499,108.73 : 30,769,938.91 = 11,880,049.12 : x
  2. Step 2: Convert to fraction form
    20,499,108.73/30,769,938.91 = 11,880,049.12/x
  3. Step 3: Cross multiply
    20,499,108.73x = 30,769,938.91 × 11,880,049.12
  4. Step 4: Simplify right side
    20,499,108.73x = 365,548,385,714,380.12
  5. Step 5: Solve for x
    x = 365,548,385,714,380.12/20,499,108.73
  6. Step 6: Final answer
    x = 17,832,403.86

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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.