Home / 20,191,319.76-30,294,611.24-7,904,063.49

Finding the Fourth Proportional to 20,191,319.76, 30,294,611.24 and 7,904,063.49

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Solution

The fourth proportional to 20,191,319.76, 30,294,611.24 and 7,904,063.49 is: 11,859,082.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191,319.76 : 30,294,611.24 = 7,904,063.49 : x
  2. Step 2: Convert to fraction form
    20,191,319.76/30,294,611.24 = 7,904,063.49/x
  3. Step 3: Cross multiply
    20,191,319.76x = 30,294,611.24 × 7,904,063.49
  4. Step 4: Simplify right side
    20,191,319.76x = 239,450,530,665,587.78
  5. Step 5: Solve for x
    x = 239,450,530,665,587.78/20,191,319.76
  6. Step 6: Final answer
    x = 11,859,082.69

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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.