Home / 381,986,915.55-572,979,657.25-119,691,546.72

Finding the Fourth Proportional to 381,986,915.55, 572,979,657.25 and 119,691,546.72

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Solution

The fourth proportional to 381,986,915.55, 572,979,657.25 and 119,691,546.72 is: 179,537,095.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,986,915.55 : 572,979,657.25 = 119,691,546.72 : x
  2. Step 2: Convert to fraction form
    381,986,915.55/572,979,657.25 = 119,691,546.72/x
  3. Step 3: Cross multiply
    381,986,915.55x = 572,979,657.25 × 119,691,546.72
  4. Step 4: Simplify right side
    381,986,915.55x = 68,580,821,415,347,960
  5. Step 5: Solve for x
    x = 68,580,821,415,347,960/381,986,915.55
  6. Step 6: Final answer
    x = 179,537,095.71

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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.