Home / 84,259,067.40-126,388,601.10-76,196,910.60

Finding the Fourth Proportional to 84,259,067.40, 126,388,601.10 and 76,196,910.60

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Solution

The fourth proportional to 84,259,067.40, 126,388,601.10 and 76,196,910.60 is: 114,295,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,259,067.40 : 126,388,601.10 = 76,196,910.60 : x
  2. Step 2: Convert to fraction form
    84,259,067.40/126,388,601.10 = 76,196,910.60/x
  3. Step 3: Cross multiply
    84,259,067.40x = 126,388,601.10 × 76,196,910.60
  4. Step 4: Simplify right side
    84,259,067.40x = 9,630,420,938,875,760
  5. Step 5: Solve for x
    x = 9,630,420,938,875,760/84,259,067.40
  6. Step 6: Final answer
    x = 114,295,365.90

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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.