Home / 20,211,769.80-30,327,215.94-10,491,216.84

Finding the Fourth Proportional to 20,211,769.80, 30,327,215.94 and 10,491,216.84

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Solution

The fourth proportional to 20,211,769.80, 30,327,215.94 and 10,491,216.84 is: 15,741,788.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211,769.80 : 30,327,215.94 = 10,491,216.84 : x
  2. Step 2: Convert to fraction form
    20,211,769.80/30,327,215.94 = 10,491,216.84/x
  3. Step 3: Cross multiply
    20,211,769.80x = 30,327,215.94 × 10,491,216.84
  4. Step 4: Simplify right side
    20,211,769.80x = 318,169,398,580,044.44
  5. Step 5: Solve for x
    x = 318,169,398,580,044.44/20,211,769.80
  6. Step 6: Final answer
    x = 15,741,788.16

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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.