Home / 4,857,742.21-7,289,135.15-1,981,219.39

Finding the Fourth Proportional to 4,857,742.21, 7,289,135.15 and 1,981,219.39

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Solution

The fourth proportional to 4,857,742.21, 7,289,135.15 and 1,981,219.39 is: 2,972,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,857,742.21 : 7,289,135.15 = 1,981,219.39 : x
  2. Step 2: Convert to fraction form
    4,857,742.21/7,289,135.15 = 1,981,219.39/x
  3. Step 3: Cross multiply
    4,857,742.21x = 7,289,135.15 × 1,981,219.39
  4. Step 4: Simplify right side
    4,857,742.21x = 14,441,375,895,510.56
  5. Step 5: Solve for x
    x = 14,441,375,895,510.56/4,857,742.21
  6. Step 6: Final answer
    x = 2,972,857.61

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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.