Home / 39,247,679.60-54,162,860.73-21,845,939.30

Finding the Fourth Proportional to 39,247,679.60, 54,162,860.73 and 21,845,939.30

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Solution

The fourth proportional to 39,247,679.60, 54,162,860.73 and 21,845,939.30 is: 30,147,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,247,679.60 : 54,162,860.73 = 21,845,939.30 : x
  2. Step 2: Convert to fraction form
    39,247,679.60/54,162,860.73 = 21,845,939.30/x
  3. Step 3: Cross multiply
    39,247,679.60x = 54,162,860.73 × 21,845,939.30
  4. Step 4: Simplify right side
    39,247,679.60x = 1,183,238,567,821,933.75
  5. Step 5: Solve for x
    x = 1,183,238,567,821,933.75/39,247,679.60
  6. Step 6: Final answer
    x = 30,147,987.85

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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.