Home / 1,206,479,879.56-1,809,717,145.50-321,165,439.66

Finding the Fourth Proportional to 1,206,479,879.56, 1,809,717,145.50 and 321,165,439.66

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Solution

The fourth proportional to 1,206,479,879.56, 1,809,717,145.50 and 321,165,439.66 is: 481,747,447.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,479,879.56 : 1,809,717,145.50 = 321,165,439.66 : x
  2. Step 2: Convert to fraction form
    1,206,479,879.56/1,809,717,145.50 = 321,165,439.66/x
  3. Step 3: Cross multiply
    1,206,479,879.56x = 1,809,717,145.50 × 321,165,439.66
  4. Step 4: Simplify right side
    1,206,479,879.56x = 581,218,602,694,747,776
  5. Step 5: Solve for x
    x = 581,218,602,694,747,776/1,206,479,879.56
  6. Step 6: Final answer
    x = 481,747,447.71

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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.