Home / 7,139,891.12-9,853,220.93-3,876,843.38

Finding the Fourth Proportional to 7,139,891.12, 9,853,220.93 and 3,876,843.38

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Solution

The fourth proportional to 7,139,891.12, 9,853,220.93 and 3,876,843.38 is: 5,350,136.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,891.12 : 9,853,220.93 = 3,876,843.38 : x
  2. Step 2: Convert to fraction form
    7,139,891.12/9,853,220.93 = 3,876,843.38/x
  3. Step 3: Cross multiply
    7,139,891.12x = 9,853,220.93 × 3,876,843.38
  4. Step 4: Simplify right side
    7,139,891.12x = 38,199,394,265,497.62
  5. Step 5: Solve for x
    x = 38,199,394,265,497.62/7,139,891.12
  6. Step 6: Final answer
    x = 5,350,136.81

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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.