Home / 7,139,893.28-9,853,223.94-3,876,845.54

Finding the Fourth Proportional to 7,139,893.28, 9,853,223.94 and 3,876,845.54

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Solution

The fourth proportional to 7,139,893.28, 9,853,223.94 and 3,876,845.54 is: 5,350,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,893.28 : 9,853,223.94 = 3,876,845.54 : x
  2. Step 2: Convert to fraction form
    7,139,893.28/9,853,223.94 = 3,876,845.54/x
  3. Step 3: Cross multiply
    7,139,893.28x = 9,853,223.94 × 3,876,845.54
  4. Step 4: Simplify right side
    7,139,893.28x = 38,199,427,286,410.23
  5. Step 5: Solve for x
    x = 38,199,427,286,410.23/7,139,893.28
  6. Step 6: Final answer
    x = 5,350,139.81

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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.