Home / 18,839,342.67-28,253,910.43-5,189,242.67

Finding the Fourth Proportional to 18,839,342.67, 28,253,910.43 and 5,189,242.67

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Solution

The fourth proportional to 18,839,342.67, 28,253,910.43 and 5,189,242.67 is: 7,782,458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,839,342.67 : 28,253,910.43 = 5,189,242.67 : x
  2. Step 2: Convert to fraction form
    18,839,342.67/28,253,910.43 = 5,189,242.67/x
  3. Step 3: Cross multiply
    18,839,342.67x = 28,253,910.43 × 5,189,242.67
  4. Step 4: Simplify right side
    18,839,342.67x = 146,616,397,597,714.03
  5. Step 5: Solve for x
    x = 146,616,397,597,714.03/18,839,342.67
  6. Step 6: Final answer
    x = 7,782,458.24

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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.