Home / 3,918,040.62-5,406,599.64-2,198,828.98

Finding the Fourth Proportional to 3,918,040.62, 5,406,599.64 and 2,198,828.98

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Solution

The fourth proportional to 3,918,040.62, 5,406,599.64 and 2,198,828.98 is: 3,034,217.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,040.62 : 5,406,599.64 = 2,198,828.98 : x
  2. Step 2: Convert to fraction form
    3,918,040.62/5,406,599.64 = 2,198,828.98/x
  3. Step 3: Cross multiply
    3,918,040.62x = 5,406,599.64 × 2,198,828.98
  4. Step 4: Simplify right side
    3,918,040.62x = 11,888,187,971,689.57
  5. Step 5: Solve for x
    x = 11,888,187,971,689.57/3,918,040.62
  6. Step 6: Final answer
    x = 3,034,217.64

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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.