Home / 118,803,917.72-178,102,836.06-45,970,568.37

Finding the Fourth Proportional to 118,803,917.72, 178,102,836.06 and 45,970,568.37

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Solution

The fourth proportional to 118,803,917.72, 178,102,836.06 and 45,970,568.37 is: 68,915,981.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,803,917.72 : 178,102,836.06 = 45,970,568.37 : x
  2. Step 2: Convert to fraction form
    118,803,917.72/178,102,836.06 = 45,970,568.37/x
  3. Step 3: Cross multiply
    118,803,917.72x = 178,102,836.06 × 45,970,568.37
  4. Step 4: Simplify right side
    118,803,917.72x = 8,187,488,601,987,131
  5. Step 5: Solve for x
    x = 8,187,488,601,987,131/118,803,917.72
  6. Step 6: Final answer
    x = 68,915,981.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.