Home / 21,198,818.56-31,780,852.25-7,544,189.44

Finding the Fourth Proportional to 21,198,818.56, 31,780,852.25 and 7,544,189.44

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Solution

The fourth proportional to 21,198,818.56, 31,780,852.25 and 7,544,189.44 is: 11,310,100.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198,818.56 : 31,780,852.25 = 7,544,189.44 : x
  2. Step 2: Convert to fraction form
    21,198,818.56/31,780,852.25 = 7,544,189.44/x
  3. Step 3: Cross multiply
    21,198,818.56x = 31,780,852.25 × 7,544,189.44
  4. Step 4: Simplify right side
    21,198,818.56x = 239,760,769,983,091.44
  5. Step 5: Solve for x
    x = 239,760,769,983,091.44/21,198,818.56
  6. Step 6: Final answer
    x = 11,310,100.58

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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.