Home / 12,640,091.85-18,928,061.78-6,953,891.85

Finding the Fourth Proportional to 12,640,091.85, 18,928,061.78 and 6,953,891.85

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Solution

The fourth proportional to 12,640,091.85, 18,928,061.78 and 6,953,891.85 is: 10,413,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640,091.85 : 18,928,061.78 = 6,953,891.85 : x
  2. Step 2: Convert to fraction form
    12,640,091.85/18,928,061.78 = 6,953,891.85/x
  3. Step 3: Cross multiply
    12,640,091.85x = 18,928,061.78 × 6,953,891.85
  4. Step 4: Simplify right side
    12,640,091.85x = 131,623,694,513,469.02
  5. Step 5: Solve for x
    x = 131,623,694,513,469.02/12,640,091.85
  6. Step 6: Final answer
    x = 10,413,191.30

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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.