Home / 147,647,857.92-203,753,404.80-81,568,354.56

Finding the Fourth Proportional to 147,647,857.92, 203,753,404.80 and 81,568,354.56

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Solution

The fourth proportional to 147,647,857.92, 203,753,404.80 and 81,568,354.56 is: 112,563,976.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,647,857.92 : 203,753,404.80 = 81,568,354.56 : x
  2. Step 2: Convert to fraction form
    147,647,857.92/203,753,404.80 = 81,568,354.56/x
  3. Step 3: Cross multiply
    147,647,857.92x = 203,753,404.80 × 81,568,354.56
  4. Step 4: Simplify right side
    147,647,857.92x = 16,619,829,965,533,608
  5. Step 5: Solve for x
    x = 16,619,829,965,533,608/147,647,857.92
  6. Step 6: Final answer
    x = 112,563,976.20

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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.