Home / 3,900,271.96-5,382,344.43-2,181,391.20

Finding the Fourth Proportional to 3,900,271.96, 5,382,344.43 and 2,181,391.20

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Solution

The fourth proportional to 3,900,271.96, 5,382,344.43 and 2,181,391.20 is: 3,010,302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,271.96 : 5,382,344.43 = 2,181,391.20 : x
  2. Step 2: Convert to fraction form
    3,900,271.96/5,382,344.43 = 2,181,391.20/x
  3. Step 3: Cross multiply
    3,900,271.96x = 5,382,344.43 × 2,181,391.20
  4. Step 4: Simplify right side
    3,900,271.96x = 11,740,998,774,971.02
  5. Step 5: Solve for x
    x = 11,740,998,774,971.02/3,900,271.96
  6. Step 6: Final answer
    x = 3,010,302.59

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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.