Home / 68,037,872.35-102,028,432.07-21,339,326.54

Finding the Fourth Proportional to 68,037,872.35, 102,028,432.07 and 21,339,326.54

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Solution

The fourth proportional to 68,037,872.35, 102,028,432.07 and 21,339,326.54 is: 32,000,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,037,872.35 : 102,028,432.07 = 21,339,326.54 : x
  2. Step 2: Convert to fraction form
    68,037,872.35/102,028,432.07 = 21,339,326.54/x
  3. Step 3: Cross multiply
    68,037,872.35x = 102,028,432.07 × 21,339,326.54
  4. Step 4: Simplify right side
    68,037,872.35x = 2,177,218,028,305,938
  5. Step 5: Solve for x
    x = 2,177,218,028,305,938/68,037,872.35
  6. Step 6: Final answer
    x = 32,000,089.85

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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.