Home / 20,728,105.44-31,091,036.40-6,351,214.86

Finding the Fourth Proportional to 20,728,105.44, 31,091,036.40 and 6,351,214.86

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Solution

The fourth proportional to 20,728,105.44, 31,091,036.40 and 6,351,214.86 is: 9,526,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728,105.44 : 31,091,036.40 = 6,351,214.86 : x
  2. Step 2: Convert to fraction form
    20,728,105.44/31,091,036.40 = 6,351,214.86/x
  3. Step 3: Cross multiply
    20,728,105.44x = 31,091,036.40 × 6,351,214.86
  4. Step 4: Simplify right side
    20,728,105.44x = 197,465,852,396,480.91
  5. Step 5: Solve for x
    x = 197,465,852,396,480.91/20,728,105.44
  6. Step 6: Final answer
    x = 9,526,478.58

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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.