Home / 52,479,369.12-78,741,787.20-28,189,954.56

Finding the Fourth Proportional to 52,479,369.12, 78,741,787.20 and 28,189,954.56

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Solution

The fourth proportional to 52,479,369.12, 78,741,787.20 and 28,189,954.56 is: 42,297,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,479,369.12 : 78,741,787.20 = 28,189,954.56 : x
  2. Step 2: Convert to fraction form
    52,479,369.12/78,741,787.20 = 28,189,954.56/x
  3. Step 3: Cross multiply
    52,479,369.12x = 78,741,787.20 × 28,189,954.56
  4. Step 4: Simplify right side
    52,479,369.12x = 2,219,727,403,141,189.50
  5. Step 5: Solve for x
    x = 2,219,727,403,141,189.50/52,479,369.12
  6. Step 6: Final answer
    x = 42,297,143.44

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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.