Home / 147,647,861.92-203,753,410.32-81,568,358.56

Finding the Fourth Proportional to 147,647,861.92, 203,753,410.32 and 81,568,358.56

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Solution

The fourth proportional to 147,647,861.92, 203,753,410.32 and 81,568,358.56 is: 112,563,981.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,647,861.92 : 203,753,410.32 = 81,568,358.56 : x
  2. Step 2: Convert to fraction form
    147,647,861.92/203,753,410.32 = 81,568,358.56/x
  3. Step 3: Cross multiply
    147,647,861.92x = 203,753,410.32 × 81,568,358.56
  4. Step 4: Simplify right side
    147,647,861.92x = 16,619,831,230,804,564
  5. Step 5: Solve for x
    x = 16,619,831,230,804,564/147,647,861.92
  6. Step 6: Final answer
    x = 112,563,981.72

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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.