Home / 13,947,007.26-20,920,721.34-5,311,585.80

Finding the Fourth Proportional to 13,947,007.26, 20,920,721.34 and 5,311,585.80

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Solution

The fourth proportional to 13,947,007.26, 20,920,721.34 and 5,311,585.80 is: 7,967,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947,007.26 : 20,920,721.34 = 5,311,585.80 : x
  2. Step 2: Convert to fraction form
    13,947,007.26/20,920,721.34 = 5,311,585.80/x
  3. Step 3: Cross multiply
    13,947,007.26x = 20,920,721.34 × 5,311,585.80
  4. Step 4: Simplify right side
    13,947,007.26x = 111,122,206,395,300.97
  5. Step 5: Solve for x
    x = 111,122,206,395,300.97/13,947,007.26
  6. Step 6: Final answer
    x = 7,967,458.85

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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.