Home / 522,218,497.73-783,161,556.97-172,399,431.61

Finding the Fourth Proportional to 522,218,497.73, 783,161,556.97 and 172,399,431.61

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Solution

The fourth proportional to 522,218,497.73, 783,161,556.97 and 172,399,431.61 is: 258,544,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,218,497.73 : 783,161,556.97 = 172,399,431.61 : x
  2. Step 2: Convert to fraction form
    522,218,497.73/783,161,556.97 = 172,399,431.61/x
  3. Step 3: Cross multiply
    522,218,497.73x = 783,161,556.97 × 172,399,431.61
  4. Step 4: Simplify right side
    522,218,497.73x = 135,016,607,278,041,712
  5. Step 5: Solve for x
    x = 135,016,607,278,041,712/522,218,497.73
  6. Step 6: Final answer
    x = 258,544,283.41

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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.