Home / 147,177,321.72-203,095,552.60-81,094,121.90

Finding the Fourth Proportional to 147,177,321.72, 203,095,552.60 and 81,094,121.90

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Solution

The fourth proportional to 147,177,321.72, 203,095,552.60 and 81,094,121.90 is: 111,904,845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,177,321.72 : 203,095,552.60 = 81,094,121.90 : x
  2. Step 2: Convert to fraction form
    147,177,321.72/203,095,552.60 = 81,094,121.90/x
  3. Step 3: Cross multiply
    147,177,321.72x = 203,095,552.60 × 81,094,121.90
  4. Step 4: Simplify right side
    147,177,321.72x = 16,469,855,498,471,312
  5. Step 5: Solve for x
    x = 16,469,855,498,471,312/147,177,321.72
  6. Step 6: Final answer
    x = 111,904,845.84

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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.