Home / 5,138,982.80-7,700,467.80-1,942,365.20

Finding the Fourth Proportional to 5,138,982.80, 7,700,467.80 and 1,942,365.20

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Solution

The fourth proportional to 5,138,982.80, 7,700,467.80 and 1,942,365.20 is: 2,910,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138,982.80 : 7,700,467.80 = 1,942,365.20 : x
  2. Step 2: Convert to fraction form
    5,138,982.80/7,700,467.80 = 1,942,365.20/x
  3. Step 3: Cross multiply
    5,138,982.80x = 7,700,467.80 × 1,942,365.20
  4. Step 4: Simplify right side
    5,138,982.80x = 14,957,120,678,440.56
  5. Step 5: Solve for x
    x = 14,957,120,678,440.56/5,138,982.80
  6. Step 6: Final answer
    x = 2,910,521.65

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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.