Home / 7,139,893.12-9,853,223.69-3,876,845.38

Finding the Fourth Proportional to 7,139,893.12, 9,853,223.69 and 3,876,845.38

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Solution

The fourth proportional to 7,139,893.12, 9,853,223.69 and 3,876,845.38 is: 5,350,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,893.12 : 9,853,223.69 = 3,876,845.38 : x
  2. Step 2: Convert to fraction form
    7,139,893.12/9,853,223.69 = 3,876,845.38/x
  3. Step 3: Cross multiply
    7,139,893.12x = 9,853,223.69 × 3,876,845.38
  4. Step 4: Simplify right side
    7,139,893.12x = 38,199,424,740,683.05
  5. Step 5: Solve for x
    x = 38,199,424,740,683.05/7,139,893.12
  6. Step 6: Final answer
    x = 5,350,139.57

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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.