Home / 172,647,833.38-259,099,295.98-81,771,422.38

Finding the Fourth Proportional to 172,647,833.38, 259,099,295.98 and 81,771,422.38

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Solution

The fourth proportional to 172,647,833.38, 259,099,295.98 and 81,771,422.38 is: 122,717,543.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,647,833.38 : 259,099,295.98 = 81,771,422.38 : x
  2. Step 2: Convert to fraction form
    172,647,833.38/259,099,295.98 = 81,771,422.38/x
  3. Step 3: Cross multiply
    172,647,833.38x = 259,099,295.98 × 81,771,422.38
  4. Step 4: Simplify right side
    172,647,833.38x = 21,186,917,969,941,212
  5. Step 5: Solve for x
    x = 21,186,917,969,941,212/172,647,833.38
  6. Step 6: Final answer
    x = 122,717,543.31

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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.