Home / 3,933,356.91-5,428,125.36-2,191,143.53

Finding the Fourth Proportional to 3,933,356.91, 5,428,125.36 and 2,191,143.53

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Solution

The fourth proportional to 3,933,356.91, 5,428,125.36 and 2,191,143.53 is: 3,023,829.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933,356.91 : 5,428,125.36 = 2,191,143.53 : x
  2. Step 2: Convert to fraction form
    3,933,356.91/5,428,125.36 = 2,191,143.53/x
  3. Step 3: Cross multiply
    3,933,356.91x = 5,428,125.36 × 2,191,143.53
  4. Step 4: Simplify right side
    3,933,356.91x = 11,893,801,735,452.29
  5. Step 5: Solve for x
    x = 11,893,801,735,452.29/3,933,356.91
  6. Step 6: Final answer
    x = 3,023,829.77

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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.