Home / 28,172,421.06-42,264,691.40-8,741,257.75

Finding the Fourth Proportional to 28,172,421.06, 42,264,691.40 and 8,741,257.75

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Solution

The fourth proportional to 28,172,421.06, 42,264,691.40 and 8,741,257.75 is: 13,113,766.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172,421.06 : 42,264,691.40 = 8,741,257.75 : x
  2. Step 2: Convert to fraction form
    28,172,421.06/42,264,691.40 = 8,741,257.75/x
  3. Step 3: Cross multiply
    28,172,421.06x = 42,264,691.40 × 8,741,257.75
  4. Step 4: Simplify right side
    28,172,421.06x = 369,446,561,207,902.06
  5. Step 5: Solve for x
    x = 369,446,561,207,902.06/28,172,421.06
  6. Step 6: Final answer
    x = 13,113,766.85

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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.