Home / 21,100,309.74-31,650,120.21-6,723,183.18

Finding the Fourth Proportional to 21,100,309.74, 31,650,120.21 and 6,723,183.18

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Solution

The fourth proportional to 21,100,309.74, 31,650,120.21 and 6,723,183.18 is: 10,084,665.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,100,309.74 : 31,650,120.21 = 6,723,183.18 : x
  2. Step 2: Convert to fraction form
    21,100,309.74/31,650,120.21 = 6,723,183.18/x
  3. Step 3: Cross multiply
    21,100,309.74x = 31,650,120.21 × 6,723,183.18
  4. Step 4: Simplify right side
    21,100,309.74x = 212,789,555,840,850.06
  5. Step 5: Solve for x
    x = 212,789,555,840,850.06/21,100,309.74
  6. Step 6: Final answer
    x = 10,084,665.03

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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.