Home / 218,040,311.98-300,942,196.59-125,271,971.02

Finding the Fourth Proportional to 218,040,311.98, 300,942,196.59 and 125,271,971.02

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Solution

The fourth proportional to 218,040,311.98, 300,942,196.59 and 125,271,971.02 is: 172,902,073.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,040,311.98 : 300,942,196.59 = 125,271,971.02 : x
  2. Step 2: Convert to fraction form
    218,040,311.98/300,942,196.59 = 125,271,971.02/x
  3. Step 3: Cross multiply
    218,040,311.98x = 300,942,196.59 × 125,271,971.02
  4. Step 4: Simplify right side
    218,040,311.98x = 37,699,622,129,917,616
  5. Step 5: Solve for x
    x = 37,699,622,129,917,616/218,040,311.98
  6. Step 6: Final answer
    x = 172,902,073.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.