Home / 139,363,847.92-192,332,883-83,611,366.48

Finding the Fourth Proportional to 139,363,847.92, 192,332,883 and 83,611,366.48

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Solution

The fourth proportional to 139,363,847.92, 192,332,883 and 83,611,366.48 is: 115,390,148.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,363,847.92 : 192,332,883 = 83,611,366.48 : x
  2. Step 2: Convert to fraction form
    139,363,847.92/192,332,883 = 83,611,366.48/x
  3. Step 3: Cross multiply
    139,363,847.92x = 192,332,883 × 83,611,366.48
  4. Step 4: Simplify right side
    139,363,847.92x = 16,081,215,166,667,962
  5. Step 5: Solve for x
    x = 16,081,215,166,667,962/139,363,847.92
  6. Step 6: Final answer
    x = 115,390,148.93

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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.