Home / 4,678,890.20-7,018,335.30-3,993,921.80

Finding the Fourth Proportional to 4,678,890.20, 7,018,335.30 and 3,993,921.80

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Solution

The fourth proportional to 4,678,890.20, 7,018,335.30 and 3,993,921.80 is: 5,990,882.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678,890.20 : 7,018,335.30 = 3,993,921.80 : x
  2. Step 2: Convert to fraction form
    4,678,890.20/7,018,335.30 = 3,993,921.80/x
  3. Step 3: Cross multiply
    4,678,890.20x = 7,018,335.30 × 3,993,921.80
  4. Step 4: Simplify right side
    4,678,890.20x = 28,030,682,354,379.54
  5. Step 5: Solve for x
    x = 28,030,682,354,379.54/4,678,890.20
  6. Step 6: Final answer
    x = 5,990,882.70

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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.