Home / 3,943,745-5,442,368.12-2,132,909

Finding the Fourth Proportional to 3,943,745, 5,442,368.12 and 2,132,909

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Solution

The fourth proportional to 3,943,745, 5,442,368.12 and 2,132,909 is: 2,943,414.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943,745 : 5,442,368.12 = 2,132,909 : x
  2. Step 2: Convert to fraction form
    3,943,745/5,442,368.12 = 2,132,909/x
  3. Step 3: Cross multiply
    3,943,745x = 5,442,368.12 × 2,132,909
  4. Step 4: Simplify right side
    3,943,745x = 11,608,075,944,461.08
  5. Step 5: Solve for x
    x = 11,608,075,944,461.08/3,943,745
  6. Step 6: Final answer
    x = 2,943,414.43

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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.