Home / 13,920,759.36-19,206,343.20-8,115,431.04

Finding the Fourth Proportional to 13,920,759.36, 19,206,343.20 and 8,115,431.04

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Solution

The fourth proportional to 13,920,759.36, 19,206,343.20 and 8,115,431.04 is: 11,196,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920,759.36 : 19,206,343.20 = 8,115,431.04 : x
  2. Step 2: Convert to fraction form
    13,920,759.36/19,206,343.20 = 8,115,431.04/x
  3. Step 3: Cross multiply
    13,920,759.36x = 19,206,343.20 × 8,115,431.04
  4. Step 4: Simplify right side
    13,920,759.36x = 155,867,753,770,172.94
  5. Step 5: Solve for x
    x = 155,867,753,770,172.94/13,920,759.36
  6. Step 6: Final answer
    x = 11,196,785.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.