Home / 128,526,553.80-177,322,305.66-82,143,957.96

Finding the Fourth Proportional to 128,526,553.80, 177,322,305.66 and 82,143,957.96

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Solution

The fourth proportional to 128,526,553.80, 177,322,305.66 and 82,143,957.96 is: 113,330,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,526,553.80 : 177,322,305.66 = 82,143,957.96 : x
  2. Step 2: Convert to fraction form
    128,526,553.80/177,322,305.66 = 82,143,957.96/x
  3. Step 3: Cross multiply
    128,526,553.80x = 177,322,305.66 × 82,143,957.96
  4. Step 4: Simplify right side
    128,526,553.80x = 14,565,956,021,505,308
  5. Step 5: Solve for x
    x = 14,565,956,021,505,308/128,526,553.80
  6. Step 6: Final answer
    x = 113,330,324.29

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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.