Home / 568,318,215.94-784,278,822.81-320,801,707.78

Finding the Fourth Proportional to 568,318,215.94, 784,278,822.81 and 320,801,707.78

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Solution

The fourth proportional to 568,318,215.94, 784,278,822.81 and 320,801,707.78 is: 442,706,178.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,318,215.94 : 784,278,822.81 = 320,801,707.78 : x
  2. Step 2: Convert to fraction form
    568,318,215.94/784,278,822.81 = 320,801,707.78/x
  3. Step 3: Cross multiply
    568,318,215.94x = 784,278,822.81 × 320,801,707.78
  4. Step 4: Simplify right side
    568,318,215.94x = 251,597,985,733,135,968
  5. Step 5: Solve for x
    x = 251,597,985,733,135,968/568,318,215.94
  6. Step 6: Final answer
    x = 442,706,178.82

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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.