Home / 5,172,999.15-7,138,202.88-3,185,820.33

Finding the Fourth Proportional to 5,172,999.15, 7,138,202.88 and 3,185,820.33

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Solution

The fourth proportional to 5,172,999.15, 7,138,202.88 and 3,185,820.33 is: 4,396,101.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,999.15 : 7,138,202.88 = 3,185,820.33 : x
  2. Step 2: Convert to fraction form
    5,172,999.15/7,138,202.88 = 3,185,820.33/x
  3. Step 3: Cross multiply
    5,172,999.15x = 7,138,202.88 × 3,185,820.33
  4. Step 4: Simplify right side
    5,172,999.15x = 22,741,031,854,768.55
  5. Step 5: Solve for x
    x = 22,741,031,854,768.55/5,172,999.15
  6. Step 6: Final answer
    x = 4,396,101.99

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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.