Home / 139,847,825.70-192,990,808.23-77,972,016.42

Finding the Fourth Proportional to 139,847,825.70, 192,990,808.23 and 77,972,016.42

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Solution

The fourth proportional to 139,847,825.70, 192,990,808.23 and 77,972,016.42 is: 107,601,833.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,847,825.70 : 192,990,808.23 = 77,972,016.42 : x
  2. Step 2: Convert to fraction form
    139,847,825.70/192,990,808.23 = 77,972,016.42/x
  3. Step 3: Cross multiply
    139,847,825.70x = 192,990,808.23 × 77,972,016.42
  4. Step 4: Simplify right side
    139,847,825.70x = 15,047,882,468,218,630
  5. Step 5: Solve for x
    x = 15,047,882,468,218,630/139,847,825.70
  6. Step 6: Final answer
    x = 107,601,833.59

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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.