Home / 13,947,331.54-20,921,206-5,311,908.90

Finding the Fourth Proportional to 13,947,331.54, 20,921,206 and 5,311,908.90

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Solution

The fourth proportional to 13,947,331.54, 20,921,206 and 5,311,908.90 is: 7,967,942.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947,331.54 : 20,921,206 = 5,311,908.90 : x
  2. Step 2: Convert to fraction form
    13,947,331.54/20,921,206 = 5,311,908.90/x
  3. Step 3: Cross multiply
    13,947,331.54x = 20,921,206 × 5,311,908.90
  4. Step 4: Simplify right side
    13,947,331.54x = 111,131,540,245,527.36
  5. Step 5: Solve for x
    x = 111,131,540,245,527.36/13,947,331.54
  6. Step 6: Final answer
    x = 7,967,942.82

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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.