Home / 21,198,872.63-31,780,930.57-7,544,243.46

Finding the Fourth Proportional to 21,198,872.63, 31,780,930.57 and 7,544,243.46

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Solution

The fourth proportional to 21,198,872.63, 31,780,930.57 and 7,544,243.46 is: 11,310,180.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198,872.63 : 31,780,930.57 = 7,544,243.46 : x
  2. Step 2: Convert to fraction form
    21,198,872.63/31,780,930.57 = 7,544,243.46/x
  3. Step 3: Cross multiply
    21,198,872.63x = 31,780,930.57 × 7,544,243.46
  4. Step 4: Simplify right side
    21,198,872.63x = 239,763,077,526,986.72
  5. Step 5: Solve for x
    x = 239,763,077,526,986.72/21,198,872.63
  6. Step 6: Final answer
    x = 11,310,180.58

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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.