Home / 258,653,003.40-387,979,505.10-166,819,998.60

Finding the Fourth Proportional to 258,653,003.40, 387,979,505.10 and 166,819,998.60

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Solution

The fourth proportional to 258,653,003.40, 387,979,505.10 and 166,819,998.60 is: 250,229,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,653,003.40 : 387,979,505.10 = 166,819,998.60 : x
  2. Step 2: Convert to fraction form
    258,653,003.40/387,979,505.10 = 166,819,998.60/x
  3. Step 3: Cross multiply
    258,653,003.40x = 387,979,505.10 × 166,819,998.60
  4. Step 4: Simplify right side
    258,653,003.40x = 64,722,740,497,610,696
  5. Step 5: Solve for x
    x = 64,722,740,497,610,696/258,653,003.40
  6. Step 6: Final answer
    x = 250,229,997.90

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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.