Home / 12,286,738.64-16,959,072.18-7,131,760.94

Finding the Fourth Proportional to 12,286,738.64, 16,959,072.18 and 7,131,760.94

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Solution

The fourth proportional to 12,286,738.64, 16,959,072.18 and 7,131,760.94 is: 9,843,787.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286,738.64 : 16,959,072.18 = 7,131,760.94 : x
  2. Step 2: Convert to fraction form
    12,286,738.64/16,959,072.18 = 7,131,760.94/x
  3. Step 3: Cross multiply
    12,286,738.64x = 16,959,072.18 × 7,131,760.94
  4. Step 4: Simplify right side
    12,286,738.64x = 120,948,048,467,169.28
  5. Step 5: Solve for x
    x = 120,948,048,467,169.28/12,286,738.64
  6. Step 6: Final answer
    x = 9,843,787.85

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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.