Home / 21,313,825.20-31,954,991.40-9,173,350.80

Finding the Fourth Proportional to 21,313,825.20, 31,954,991.40 and 9,173,350.80

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Solution

The fourth proportional to 21,313,825.20, 31,954,991.40 and 9,173,350.80 is: 13,753,249.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313,825.20 : 31,954,991.40 = 9,173,350.80 : x
  2. Step 2: Convert to fraction form
    21,313,825.20/31,954,991.40 = 9,173,350.80/x
  3. Step 3: Cross multiply
    21,313,825.20x = 31,954,991.40 × 9,173,350.80
  4. Step 4: Simplify right side
    21,313,825.20x = 293,134,345,923,183.12
  5. Step 5: Solve for x
    x = 293,134,345,923,183.12/21,313,825.20
  6. Step 6: Final answer
    x = 13,753,249.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.