Home / 919,471,786.80-1,379,204,051.40-273,239,530.80

Finding the Fourth Proportional to 919,471,786.80, 1,379,204,051.40 and 273,239,530.80

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Solution

The fourth proportional to 919,471,786.80, 1,379,204,051.40 and 273,239,530.80 is: 409,858,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,471,786.80 : 1,379,204,051.40 = 273,239,530.80 : x
  2. Step 2: Convert to fraction form
    919,471,786.80/1,379,204,051.40 = 273,239,530.80/x
  3. Step 3: Cross multiply
    919,471,786.80x = 1,379,204,051.40 × 273,239,530.80
  4. Step 4: Simplify right side
    919,471,786.80x = 376,853,067,881,995,136
  5. Step 5: Solve for x
    x = 376,853,067,881,995,136/919,471,786.80
  6. Step 6: Final answer
    x = 409,858,217.83

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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.