Home / 13,515,491.25-20,273,021.96-3,280,435.61

Finding the Fourth Proportional to 13,515,491.25, 20,273,021.96 and 3,280,435.61

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Solution

The fourth proportional to 13,515,491.25, 20,273,021.96 and 3,280,435.61 is: 4,920,601.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515,491.25 : 20,273,021.96 = 3,280,435.61 : x
  2. Step 2: Convert to fraction form
    13,515,491.25/20,273,021.96 = 3,280,435.61/x
  3. Step 3: Cross multiply
    13,515,491.25x = 20,273,021.96 × 3,280,435.61
  4. Step 4: Simplify right side
    13,515,491.25x = 66,504,343,042,128.70
  5. Step 5: Solve for x
    x = 66,504,343,042,128.70/13,515,491.25
  6. Step 6: Final answer
    x = 4,920,601.24

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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.