Home / 139,356,680.92-192,322,977.42-83,604,189.40

Finding the Fourth Proportional to 139,356,680.92, 192,322,977.42 and 83,604,189.40

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Solution

The fourth proportional to 139,356,680.92, 192,322,977.42 and 83,604,189.40 is: 115,380,235.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,356,680.92 : 192,322,977.42 = 83,604,189.40 : x
  2. Step 2: Convert to fraction form
    139,356,680.92/192,322,977.42 = 83,604,189.40/x
  3. Step 3: Cross multiply
    139,356,680.92x = 192,322,977.42 × 83,604,189.40
  4. Step 4: Simplify right side
    139,356,680.92x = 16,079,006,630,193,604
  5. Step 5: Solve for x
    x = 16,079,006,630,193,604/139,356,680.92
  6. Step 6: Final answer
    x = 115,380,235.26

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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.