Home / 28,327,530.30-42,501,793.05-9,158,912.70

Finding the Fourth Proportional to 28,327,530.30, 42,501,793.05 and 9,158,912.70

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Solution

The fourth proportional to 28,327,530.30, 42,501,793.05 and 9,158,912.70 is: 13,741,763.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327,530.30 : 42,501,793.05 = 9,158,912.70 : x
  2. Step 2: Convert to fraction form
    28,327,530.30/42,501,793.05 = 9,158,912.70/x
  3. Step 3: Cross multiply
    28,327,530.30x = 42,501,793.05 × 9,158,912.70
  4. Step 4: Simplify right side
    28,327,530.30x = 389,270,212,138,416.69
  5. Step 5: Solve for x
    x = 389,270,212,138,416.69/28,327,530.30
  6. Step 6: Final answer
    x = 13,741,763.15

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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.