Home / 13,519,391.82-20,180,743.96-12,520,282.74

Finding the Fourth Proportional to 13,519,391.82, 20,180,743.96 and 12,520,282.74

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Solution

The fourth proportional to 13,519,391.82, 20,180,743.96 and 12,520,282.74 is: 18,689,348.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519,391.82 : 20,180,743.96 = 12,520,282.74 : x
  2. Step 2: Convert to fraction form
    13,519,391.82/20,180,743.96 = 12,520,282.74/x
  3. Step 3: Cross multiply
    13,519,391.82x = 20,180,743.96 × 12,520,282.74
  4. Step 4: Simplify right side
    13,519,391.82x = 252,668,620,282,747.28
  5. Step 5: Solve for x
    x = 252,668,620,282,747.28/13,519,391.82
  6. Step 6: Final answer
    x = 18,689,348.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.