Home / 12,435,728.18-17,161,372.97-7,211,833.61

Finding the Fourth Proportional to 12,435,728.18, 17,161,372.97 and 7,211,833.61

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Solution

The fourth proportional to 12,435,728.18, 17,161,372.97 and 7,211,833.61 is: 9,952,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435,728.18 : 17,161,372.97 = 7,211,833.61 : x
  2. Step 2: Convert to fraction form
    12,435,728.18/17,161,372.97 = 7,211,833.61/x
  3. Step 3: Cross multiply
    12,435,728.18x = 17,161,372.97 × 7,211,833.61
  4. Step 4: Simplify right side
    12,435,728.18x = 123,764,966,311,014.25
  5. Step 5: Solve for x
    x = 123,764,966,311,014.25/12,435,728.18
  6. Step 6: Final answer
    x = 9,952,369.86

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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.