Home / 2,127,982.20-3,192,117.30-865,831.80

Finding the Fourth Proportional to 2,127,982.20, 3,192,117.30 and 865,831.80

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Solution

The fourth proportional to 2,127,982.20, 3,192,117.30 and 865,831.80 is: 1,298,806.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127,982.20 : 3,192,117.30 = 865,831.80 : x
  2. Step 2: Convert to fraction form
    2,127,982.20/3,192,117.30 = 865,831.80/x
  3. Step 3: Cross multiply
    2,127,982.20x = 3,192,117.30 × 865,831.80
  4. Step 4: Simplify right side
    2,127,982.20x = 2,763,836,667,670.14
  5. Step 5: Solve for x
    x = 2,763,836,667,670.14/2,127,982.20
  6. Step 6: Final answer
    x = 1,298,806.29

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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.