Home / 13,512,278.80-20,268,549.42-10,809,890.56

Finding the Fourth Proportional to 13,512,278.80, 20,268,549.42 and 10,809,890.56

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Solution

The fourth proportional to 13,512,278.80, 20,268,549.42 and 10,809,890.56 is: 16,214,940.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512,278.80 : 20,268,549.42 = 10,809,890.56 : x
  2. Step 2: Convert to fraction form
    13,512,278.80/20,268,549.42 = 10,809,890.56/x
  3. Step 3: Cross multiply
    13,512,278.80x = 20,268,549.42 × 10,809,890.56
  4. Step 4: Simplify right side
    13,512,278.80x = 219,100,801,040,151.50
  5. Step 5: Solve for x
    x = 219,100,801,040,151.50/13,512,278.80
  6. Step 6: Final answer
    x = 16,214,940.82

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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.