Home / 3,918,022.20-5,406,574.01-2,198,810.57

Finding the Fourth Proportional to 3,918,022.20, 5,406,574.01 and 2,198,810.57

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Solution

The fourth proportional to 3,918,022.20, 5,406,574.01 and 2,198,810.57 is: 3,034,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,022.20 : 5,406,574.01 = 2,198,810.57 : x
  2. Step 2: Convert to fraction form
    3,918,022.20/5,406,574.01 = 2,198,810.57/x
  3. Step 3: Cross multiply
    3,918,022.20x = 5,406,574.01 × 2,198,810.57
  4. Step 4: Simplify right side
    3,918,022.20x = 11,888,032,042,648.36
  5. Step 5: Solve for x
    x = 11,888,032,042,648.36/3,918,022.20
  6. Step 6: Final answer
    x = 3,034,192.11

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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.