Home / 3,900,653.89-5,382,609.57-2,181,442.25

Finding the Fourth Proportional to 3,900,653.89, 5,382,609.57 and 2,181,442.25

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Solution

The fourth proportional to 3,900,653.89, 5,382,609.57 and 2,181,442.25 is: 3,010,226.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,653.89 : 5,382,609.57 = 2,181,442.25 : x
  2. Step 2: Convert to fraction form
    3,900,653.89/5,382,609.57 = 2,181,442.25/x
  3. Step 3: Cross multiply
    3,900,653.89x = 5,382,609.57 × 2,181,442.25
  4. Step 4: Simplify right side
    3,900,653.89x = 11,741,851,944,708.86
  5. Step 5: Solve for x
    x = 11,741,851,944,708.86/3,900,653.89
  6. Step 6: Final answer
    x = 3,010,226.56

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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.