Home / 13,898,358.59-20,752,476.26-12,449,689.79

Finding the Fourth Proportional to 13,898,358.59, 20,752,476.26 and 12,449,689.79

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Solution

The fourth proportional to 13,898,358.59, 20,752,476.26 and 12,449,689.79 is: 18,589,381.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898,358.59 : 20,752,476.26 = 12,449,689.79 : x
  2. Step 2: Convert to fraction form
    13,898,358.59/20,752,476.26 = 12,449,689.79/x
  3. Step 3: Cross multiply
    13,898,358.59x = 20,752,476.26 × 12,449,689.79
  4. Step 4: Simplify right side
    13,898,358.59x = 258,361,891,811,339.38
  5. Step 5: Solve for x
    x = 258,361,891,811,339.38/13,898,358.59
  6. Step 6: Final answer
    x = 18,589,381.63

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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.