Home / 3,918,056.41-5,406,621.37-2,198,844.78

Finding the Fourth Proportional to 3,918,056.41, 5,406,621.37 and 2,198,844.78

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Solution

The fourth proportional to 3,918,056.41, 5,406,621.37 and 2,198,844.78 is: 3,034,239.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,056.41 : 5,406,621.37 = 2,198,844.78 : x
  2. Step 2: Convert to fraction form
    3,918,056.41/5,406,621.37 = 2,198,844.78/x
  3. Step 3: Cross multiply
    3,918,056.41x = 5,406,621.37 × 2,198,844.78
  4. Step 4: Simplify right side
    3,918,056.41x = 11,888,321,176,860.95
  5. Step 5: Solve for x
    x = 11,888,321,176,860.95/3,918,056.41
  6. Step 6: Final answer
    x = 3,034,239.41

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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.