Home / 20,728,054.31-31,090,959.71-6,351,163.73

Finding the Fourth Proportional to 20,728,054.31, 31,090,959.71 and 6,351,163.73

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Solution

The fourth proportional to 20,728,054.31, 31,090,959.71 and 6,351,163.73 is: 9,526,401.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728,054.31 : 31,090,959.71 = 6,351,163.73 : x
  2. Step 2: Convert to fraction form
    20,728,054.31/31,090,959.71 = 6,351,163.73/x
  3. Step 3: Cross multiply
    20,728,054.31x = 31,090,959.71 × 6,351,163.73
  4. Step 4: Simplify right side
    20,728,054.31x = 197,463,775,594,240.66
  5. Step 5: Solve for x
    x = 197,463,775,594,240.66/20,728,054.31
  6. Step 6: Final answer
    x = 9,526,401.88

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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.