Home / 139,339,375.44-192,289,740.12-76,618,781.52

Finding the Fourth Proportional to 139,339,375.44, 192,289,740.12 and 76,618,781.52

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Solution

The fourth proportional to 139,339,375.44, 192,289,740.12 and 76,618,781.52 is: 105,734,689.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,339,375.44 : 192,289,740.12 = 76,618,781.52 : x
  2. Step 2: Convert to fraction form
    139,339,375.44/192,289,740.12 = 76,618,781.52/x
  3. Step 3: Cross multiply
    139,339,375.44x = 192,289,740.12 × 76,618,781.52
  4. Step 4: Simplify right side
    139,339,375.44x = 14,733,005,586,791,858
  5. Step 5: Solve for x
    x = 14,733,005,586,791,858/139,339,375.44
  6. Step 6: Final answer
    x = 105,734,689.42

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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.