Home / 3,981,453.60-5,972,180.40-1,986,650.40

Finding the Fourth Proportional to 3,981,453.60, 5,972,180.40 and 1,986,650.40

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Solution

The fourth proportional to 3,981,453.60, 5,972,180.40 and 1,986,650.40 is: 2,979,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981,453.60 : 5,972,180.40 = 1,986,650.40 : x
  2. Step 2: Convert to fraction form
    3,981,453.60/5,972,180.40 = 1,986,650.40/x
  3. Step 3: Cross multiply
    3,981,453.60x = 5,972,180.40 × 1,986,650.40
  4. Step 4: Simplify right side
    3,981,453.60x = 11,864,634,580,532.16
  5. Step 5: Solve for x
    x = 11,864,634,580,532.16/3,981,453.60
  6. Step 6: Final answer
    x = 2,979,975.60

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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.