Home / 10,215,963.61-15,323,890.05-4,379,289.81

Finding the Fourth Proportional to 10,215,963.61, 15,323,890.05 and 4,379,289.81

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Solution

The fourth proportional to 10,215,963.61, 15,323,890.05 and 4,379,289.81 is: 6,568,910.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215,963.61 : 15,323,890.05 = 4,379,289.81 : x
  2. Step 2: Convert to fraction form
    10,215,963.61/15,323,890.05 = 4,379,289.81/x
  3. Step 3: Cross multiply
    10,215,963.61x = 15,323,890.05 × 4,379,289.81
  4. Step 4: Simplify right side
    10,215,963.61x = 67,107,755,500,375.38
  5. Step 5: Solve for x
    x = 67,107,755,500,375.38/10,215,963.61
  6. Step 6: Final answer
    x = 6,568,910.98

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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.