Home / 218,728,902.30-328,093,353.45-215,327,679.90

Finding the Fourth Proportional to 218,728,902.30, 328,093,353.45 and 215,327,679.90

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Solution

The fourth proportional to 218,728,902.30, 328,093,353.45 and 215,327,679.90 is: 322,991,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,728,902.30 : 328,093,353.45 = 215,327,679.90 : x
  2. Step 2: Convert to fraction form
    218,728,902.30/328,093,353.45 = 215,327,679.90/x
  3. Step 3: Cross multiply
    218,728,902.30x = 328,093,353.45 × 215,327,679.90
  4. Step 4: Simplify right side
    218,728,902.30x = 70,647,580,588,999,160
  5. Step 5: Solve for x
    x = 70,647,580,588,999,160/218,728,902.30
  6. Step 6: Final answer
    x = 322,991,519.85

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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.