Home / 139,169,680.91-192,042,959.52-80,436,150.19

Finding the Fourth Proportional to 139,169,680.91, 192,042,959.52 and 80,436,150.19

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Solution

The fourth proportional to 139,169,680.91, 192,042,959.52 and 80,436,150.19 is: 110,995,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,169,680.91 : 192,042,959.52 = 80,436,150.19 : x
  2. Step 2: Convert to fraction form
    139,169,680.91/192,042,959.52 = 80,436,150.19/x
  3. Step 3: Cross multiply
    139,169,680.91x = 192,042,959.52 × 80,436,150.19
  4. Step 4: Simplify right side
    139,169,680.91x = 15,447,196,334,882,810
  5. Step 5: Solve for x
    x = 15,447,196,334,882,810/139,169,680.91
  6. Step 6: Final answer
    x = 110,995,413.90

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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.