Home / 139,169,679.15-192,042,957.11-80,436,148.44

Finding the Fourth Proportional to 139,169,679.15, 192,042,957.11 and 80,436,148.44

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Solution

The fourth proportional to 139,169,679.15, 192,042,957.11 and 80,436,148.44 is: 110,995,411.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,169,679.15 : 192,042,957.11 = 80,436,148.44 : x
  2. Step 2: Convert to fraction form
    139,169,679.15/192,042,957.11 = 80,436,148.44/x
  3. Step 3: Cross multiply
    139,169,679.15x = 192,042,957.11 × 80,436,148.44
  4. Step 4: Simplify right side
    139,169,679.15x = 15,447,195,803,834,170
  5. Step 5: Solve for x
    x = 15,447,195,803,834,170/139,169,679.15
  6. Step 6: Final answer
    x = 110,995,411.48

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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.