Home / 121,717,797.35-167,917,778.39-80,522,065.67

Finding the Fourth Proportional to 121,717,797.35, 167,917,778.39 and 80,522,065.67

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Solution

The fourth proportional to 121,717,797.35, 167,917,778.39 and 80,522,065.67 is: 111,085,532.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,717,797.35 : 167,917,778.39 = 80,522,065.67 : x
  2. Step 2: Convert to fraction form
    121,717,797.35/167,917,778.39 = 80,522,065.67/x
  3. Step 3: Cross multiply
    121,717,797.35x = 167,917,778.39 × 80,522,065.67
  4. Step 4: Simplify right side
    121,717,797.35x = 13,521,086,377,437,888
  5. Step 5: Solve for x
    x = 13,521,086,377,437,888/121,717,797.35
  6. Step 6: Final answer
    x = 111,085,532.87

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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.