Home / 20,499,109.24-30,769,939.66-11,880,049.63

Finding the Fourth Proportional to 20,499,109.24, 30,769,939.66 and 11,880,049.63

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Solution

The fourth proportional to 20,499,109.24, 30,769,939.66 and 11,880,049.63 is: 17,832,404.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,499,109.24 : 30,769,939.66 = 11,880,049.63 : x
  2. Step 2: Convert to fraction form
    20,499,109.24/30,769,939.66 = 11,880,049.63/x
  3. Step 3: Cross multiply
    20,499,109.24x = 30,769,939.66 × 11,880,049.63
  4. Step 4: Simplify right side
    20,499,109.24x = 365,548,410,059,655.38
  5. Step 5: Solve for x
    x = 365,548,410,059,655.38/20,499,109.24
  6. Step 6: Final answer
    x = 17,832,404.61

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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.