Home / 20,156,769.20-27,815,142.84-11,453,733.92

Finding the Fourth Proportional to 20,156,769.20, 27,815,142.84 and 11,453,733.92

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Solution

The fourth proportional to 20,156,769.20, 27,815,142.84 and 11,453,733.92 is: 15,805,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156,769.20 : 27,815,142.84 = 11,453,733.92 : x
  2. Step 2: Convert to fraction form
    20,156,769.20/27,815,142.84 = 11,453,733.92/x
  3. Step 3: Cross multiply
    20,156,769.20x = 27,815,142.84 × 11,453,733.92
  4. Step 4: Simplify right side
    20,156,769.20x = 318,587,245,036,153.12
  5. Step 5: Solve for x
    x = 318,587,245,036,153.12/20,156,769.20
  6. Step 6: Final answer
    x = 15,805,471.69

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1.5x scale

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.