Home / 21,760,786.68-30,028,699.36-11,969,650.12

Finding the Fourth Proportional to 21,760,786.68, 30,028,699.36 and 11,969,650.12

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Solution

The fourth proportional to 21,760,786.68, 30,028,699.36 and 11,969,650.12 is: 16,517,464.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,760,786.68 : 30,028,699.36 = 11,969,650.12 : x
  2. Step 2: Convert to fraction form
    21,760,786.68/30,028,699.36 = 11,969,650.12/x
  3. Step 3: Cross multiply
    21,760,786.68x = 30,028,699.36 × 11,969,650.12
  4. Step 4: Simplify right side
    21,760,786.68x = 359,433,024,897,867.88
  5. Step 5: Solve for x
    x = 359,433,024,897,867.88/21,760,786.68
  6. Step 6: Final answer
    x = 16,517,464.66

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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.