Home / 3,918,694.58-5,407,977.74-2,176,370.78

Finding the Fourth Proportional to 3,918,694.58, 5,407,977.74 and 2,176,370.78

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Solution

The fourth proportional to 3,918,694.58, 5,407,977.74 and 2,176,370.78 is: 3,003,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,694.58 : 5,407,977.74 = 2,176,370.78 : x
  2. Step 2: Convert to fraction form
    3,918,694.58/5,407,977.74 = 2,176,370.78/x
  3. Step 3: Cross multiply
    3,918,694.58x = 5,407,977.74 × 2,176,370.78
  4. Step 4: Simplify right side
    3,918,694.58x = 11,769,764,732,226.44
  5. Step 5: Solve for x
    x = 11,769,764,732,226.44/3,918,694.58
  6. Step 6: Final answer
    x = 3,003,491.21

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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.