Home / 172,788,829.61-259,367,682.78-74,469,058.07

Finding the Fourth Proportional to 172,788,829.61, 259,367,682.78 and 74,469,058.07

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Solution

The fourth proportional to 172,788,829.61, 259,367,682.78 and 74,469,058.07 is: 111,783,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,788,829.61 : 259,367,682.78 = 74,469,058.07 : x
  2. Step 2: Convert to fraction form
    172,788,829.61/259,367,682.78 = 74,469,058.07/x
  3. Step 3: Cross multiply
    172,788,829.61x = 259,367,682.78 × 74,469,058.07
  4. Step 4: Simplify right side
    172,788,829.61x = 19,314,867,029,128,320
  5. Step 5: Solve for x
    x = 19,314,867,029,128,320/172,788,829.61
  6. Step 6: Final answer
    x = 111,783,076.91

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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.