Home / 82,389,739.70-123,584,609.55-21,811,589.30

Finding the Fourth Proportional to 82,389,739.70, 123,584,609.55 and 21,811,589.30

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Solution

The fourth proportional to 82,389,739.70, 123,584,609.55 and 21,811,589.30 is: 32,717,383.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,389,739.70 : 123,584,609.55 = 21,811,589.30 : x
  2. Step 2: Convert to fraction form
    82,389,739.70/123,584,609.55 = 21,811,589.30/x
  3. Step 3: Cross multiply
    82,389,739.70x = 123,584,609.55 × 21,811,589.30
  4. Step 4: Simplify right side
    82,389,739.70x = 2,695,576,747,305,458
  5. Step 5: Solve for x
    x = 2,695,576,747,305,458/82,389,739.70
  6. Step 6: Final answer
    x = 32,717,383.95

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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.