Home / 13,723,974.41-18,941,872.73-9,315,120.85

Finding the Fourth Proportional to 13,723,974.41, 18,941,872.73 and 9,315,120.85

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Solution

The fourth proportional to 13,723,974.41, 18,941,872.73 and 9,315,120.85 is: 12,856,759.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723,974.41 : 18,941,872.73 = 9,315,120.85 : x
  2. Step 2: Convert to fraction form
    13,723,974.41/18,941,872.73 = 9,315,120.85/x
  3. Step 3: Cross multiply
    13,723,974.41x = 18,941,872.73 × 9,315,120.85
  4. Step 4: Simplify right side
    13,723,974.41x = 176,445,833,511,339.16
  5. Step 5: Solve for x
    x = 176,445,833,511,339.16/13,723,974.41
  6. Step 6: Final answer
    x = 12,856,759.15

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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.