Home / 2,891,251.40-4,332,729.90-2,127,129.80

Finding the Fourth Proportional to 2,891,251.40, 4,332,729.90 and 2,127,129.80

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Solution

The fourth proportional to 2,891,251.40, 4,332,729.90 and 2,127,129.80 is: 3,187,643.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891,251.40 : 4,332,729.90 = 2,127,129.80 : x
  2. Step 2: Convert to fraction form
    2,891,251.40/4,332,729.90 = 2,127,129.80/x
  3. Step 3: Cross multiply
    2,891,251.40x = 4,332,729.90 × 2,127,129.80
  4. Step 4: Simplify right side
    2,891,251.40x = 9,216,278,885,641.02
  5. Step 5: Solve for x
    x = 9,216,278,885,641.02/2,891,251.40
  6. Step 6: Final answer
    x = 3,187,643.55

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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.