Home / 3,694,128.71-5,541,192.78-1,872,209.87

Finding the Fourth Proportional to 3,694,128.71, 5,541,192.78 and 1,872,209.87

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Solution

The fourth proportional to 3,694,128.71, 5,541,192.78 and 1,872,209.87 is: 2,808,314.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,694,128.71 : 5,541,192.78 = 1,872,209.87 : x
  2. Step 2: Convert to fraction form
    3,694,128.71/5,541,192.78 = 1,872,209.87/x
  3. Step 3: Cross multiply
    3,694,128.71x = 5,541,192.78 × 1,872,209.87
  4. Step 4: Simplify right side
    3,694,128.71x = 10,374,275,821,120.93
  5. Step 5: Solve for x
    x = 10,374,275,821,120.93/3,694,128.71
  6. Step 6: Final answer
    x = 2,808,314.66

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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.