Home / 87,619,233.80-131,176,908.30-85,099,809.80

Finding the Fourth Proportional to 87,619,233.80, 131,176,908.30 and 85,099,809.80

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Solution

The fourth proportional to 87,619,233.80, 131,176,908.30 and 85,099,809.80 is: 127,405,016.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,619,233.80 : 131,176,908.30 = 85,099,809.80 : x
  2. Step 2: Convert to fraction form
    87,619,233.80/131,176,908.30 = 85,099,809.80/x
  3. Step 3: Cross multiply
    87,619,233.80x = 131,176,908.30 × 85,099,809.80
  4. Step 4: Simplify right side
    87,619,233.80x = 11,163,129,946,482,040
  5. Step 5: Solve for x
    x = 11,163,129,946,482,040/87,619,233.80
  6. Step 6: Final answer
    x = 127,405,016.71

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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.