Home / 7,139,892.12-9,853,222.31-3,876,844.38

Finding the Fourth Proportional to 7,139,892.12, 9,853,222.31 and 3,876,844.38

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Solution

The fourth proportional to 7,139,892.12, 9,853,222.31 and 3,876,844.38 is: 5,350,138.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,892.12 : 9,853,222.31 = 3,876,844.38 : x
  2. Step 2: Convert to fraction form
    7,139,892.12/9,853,222.31 = 3,876,844.38/x
  3. Step 3: Cross multiply
    7,139,892.12x = 9,853,222.31 × 3,876,844.38
  4. Step 4: Simplify right side
    7,139,892.12x = 38,199,409,537,414.12
  5. Step 5: Solve for x
    x = 38,199,409,537,414.12/7,139,892.12
  6. Step 6: Final answer
    x = 5,350,138.19

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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.