Home / 21,919,629.24-30,248,789.22-12,129,476.94

Finding the Fourth Proportional to 21,919,629.24, 30,248,789.22 and 12,129,476.94

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Solution

The fourth proportional to 21,919,629.24, 30,248,789.22 and 12,129,476.94 is: 16,738,512.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,629.24 : 30,248,789.22 = 12,129,476.94 : x
  2. Step 2: Convert to fraction form
    21,919,629.24/30,248,789.22 = 12,129,476.94/x
  3. Step 3: Cross multiply
    21,919,629.24x = 30,248,789.22 × 12,129,476.94
  4. Step 4: Simplify right side
    21,919,629.24x = 366,901,991,306,910.56
  5. Step 5: Solve for x
    x = 366,901,991,306,910.56/21,919,629.24
  6. Step 6: Final answer
    x = 16,738,512.65

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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.