Home / 2,170,819.11-2,995,830.38-1,203,891.78

Finding the Fourth Proportional to 2,170,819.11, 2,995,830.38 and 1,203,891.78

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Solution

The fourth proportional to 2,170,819.11, 2,995,830.38 and 1,203,891.78 is: 1,661,426.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170,819.11 : 2,995,830.38 = 1,203,891.78 : x
  2. Step 2: Convert to fraction form
    2,170,819.11/2,995,830.38 = 1,203,891.78/x
  3. Step 3: Cross multiply
    2,170,819.11x = 2,995,830.38 × 1,203,891.78
  4. Step 4: Simplify right side
    2,170,819.11x = 3,606,655,562,736.82
  5. Step 5: Solve for x
    x = 3,606,655,562,736.82/2,170,819.11
  6. Step 6: Final answer
    x = 1,661,426.12

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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.