Home / 2,131,167.12-3,194,517.90-992,990.84

Finding the Fourth Proportional to 2,131,167.12, 3,194,517.90 and 992,990.84

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Solution

The fourth proportional to 2,131,167.12, 3,194,517.90 and 992,990.84 is: 1,488,445.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,167.12 : 3,194,517.90 = 992,990.84 : x
  2. Step 2: Convert to fraction form
    2,131,167.12/3,194,517.90 = 992,990.84/x
  3. Step 3: Cross multiply
    2,131,167.12x = 3,194,517.90 × 992,990.84
  4. Step 4: Simplify right side
    2,131,167.12x = 3,172,127,012,916.04
  5. Step 5: Solve for x
    x = 3,172,127,012,916.04/2,131,167.12
  6. Step 6: Final answer
    x = 1,488,445.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.