Home / 408,156,745.20-612,235,117.80-165,993,442.80

Finding the Fourth Proportional to 408,156,745.20, 612,235,117.80 and 165,993,442.80

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Solution

The fourth proportional to 408,156,745.20, 612,235,117.80 and 165,993,442.80 is: 248,990,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,156,745.20 : 612,235,117.80 = 165,993,442.80 : x
  2. Step 2: Convert to fraction form
    408,156,745.20/612,235,117.80 = 165,993,442.80/x
  3. Step 3: Cross multiply
    408,156,745.20x = 612,235,117.80 × 165,993,442.80
  4. Step 4: Simplify right side
    408,156,745.20x = 101,627,015,006,685,568
  5. Step 5: Solve for x
    x = 101,627,015,006,685,568/408,156,745.20
  6. Step 6: Final answer
    x = 248,990,164.20

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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.