Home / 15,216,123.59-20,986,006.75-13,376,648.83

Finding the Fourth Proportional to 15,216,123.59, 20,986,006.75 and 13,376,648.83

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Solution

The fourth proportional to 15,216,123.59, 20,986,006.75 and 13,376,648.83 is: 18,449,011.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216,123.59 : 20,986,006.75 = 13,376,648.83 : x
  2. Step 2: Convert to fraction form
    15,216,123.59/20,986,006.75 = 13,376,648.83/x
  3. Step 3: Cross multiply
    15,216,123.59x = 20,986,006.75 × 13,376,648.83
  4. Step 4: Simplify right side
    15,216,123.59x = 280,722,442,638,759.59
  5. Step 5: Solve for x
    x = 280,722,442,638,759.59/15,216,123.59
  6. Step 6: Final answer
    x = 18,449,011.73

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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.