Home / 1,206,479,878.56-1,809,717,144-321,165,438.66

Finding the Fourth Proportional to 1,206,479,878.56, 1,809,717,144 and 321,165,438.66

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Solution

The fourth proportional to 1,206,479,878.56, 1,809,717,144 and 321,165,438.66 is: 481,747,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,479,878.56 : 1,809,717,144 = 321,165,438.66 : x
  2. Step 2: Convert to fraction form
    1,206,479,878.56/1,809,717,144 = 321,165,438.66/x
  3. Step 3: Cross multiply
    1,206,479,878.56x = 1,809,717,144 × 321,165,438.66
  4. Step 4: Simplify right side
    1,206,479,878.56x = 581,218,600,403,282,432
  5. Step 5: Solve for x
    x = 581,218,600,403,282,432/1,206,479,878.56
  6. Step 6: Final answer
    x = 481,747,446.21

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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.