Home / 12,128,217.85-18,192,326.78-4,936,049.65

Finding the Fourth Proportional to 12,128,217.85, 18,192,326.78 and 4,936,049.65

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Solution

The fourth proportional to 12,128,217.85, 18,192,326.78 and 4,936,049.65 is: 7,404,074.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,217.85 : 18,192,326.78 = 4,936,049.65 : x
  2. Step 2: Convert to fraction form
    12,128,217.85/18,192,326.78 = 4,936,049.65/x
  3. Step 3: Cross multiply
    12,128,217.85x = 18,192,326.78 × 4,936,049.65
  4. Step 4: Simplify right side
    12,128,217.85x = 89,798,228,210,424.38
  5. Step 5: Solve for x
    x = 89,798,228,210,424.38/12,128,217.85
  6. Step 6: Final answer
    x = 7,404,074.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.