Home / 5,215,805.78-7,197,833.04-2,892,915.17

Finding the Fourth Proportional to 5,215,805.78, 7,197,833.04 and 2,892,915.17

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Solution

The fourth proportional to 5,215,805.78, 7,197,833.04 and 2,892,915.17 is: 3,992,234.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,805.78 : 7,197,833.04 = 2,892,915.17 : x
  2. Step 2: Convert to fraction form
    5,215,805.78/7,197,833.04 = 2,892,915.17/x
  3. Step 3: Cross multiply
    5,215,805.78x = 7,197,833.04 × 2,892,915.17
  4. Step 4: Simplify right side
    5,215,805.78x = 20,822,720,372,697.50
  5. Step 5: Solve for x
    x = 20,822,720,372,697.50/5,215,805.78
  6. Step 6: Final answer
    x = 3,992,234.61

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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.