Home / 2,990,200.56-4,131,874.51-2,129,266.14

Finding the Fourth Proportional to 2,990,200.56, 4,131,874.51 and 2,129,266.14

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Solution

The fourth proportional to 2,990,200.56, 4,131,874.51 and 2,129,266.14 is: 2,942,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990,200.56 : 4,131,874.51 = 2,129,266.14 : x
  2. Step 2: Convert to fraction form
    2,990,200.56/4,131,874.51 = 2,129,266.14/x
  3. Step 3: Cross multiply
    2,990,200.56x = 4,131,874.51 × 2,129,266.14
  4. Step 4: Simplify right side
    2,990,200.56x = 8,797,860,488,872.09
  5. Step 5: Solve for x
    x = 8,797,860,488,872.09/2,990,200.56
  6. Step 6: Final answer
    x = 2,942,230.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.