Home / 3,898,928.66-5,380,160.47-2,156,560.56

Finding the Fourth Proportional to 3,898,928.66, 5,380,160.47 and 2,156,560.56

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Solution

The fourth proportional to 3,898,928.66, 5,380,160.47 and 2,156,560.56 is: 2,975,853.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898,928.66 : 5,380,160.47 = 2,156,560.56 : x
  2. Step 2: Convert to fraction form
    3,898,928.66/5,380,160.47 = 2,156,560.56/x
  3. Step 3: Cross multiply
    3,898,928.66x = 5,380,160.47 × 2,156,560.56
  4. Step 4: Simplify right side
    3,898,928.66x = 11,602,641,876,073.06
  5. Step 5: Solve for x
    x = 11,602,641,876,073.06/3,898,928.66
  6. Step 6: Final answer
    x = 2,975,853.85

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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.