Home / 408,156,743.20-612,235,114.80-165,993,440.80

Finding the Fourth Proportional to 408,156,743.20, 612,235,114.80 and 165,993,440.80

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Solution

The fourth proportional to 408,156,743.20, 612,235,114.80 and 165,993,440.80 is: 248,990,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,156,743.20 : 612,235,114.80 = 165,993,440.80 : x
  2. Step 2: Convert to fraction form
    408,156,743.20/612,235,114.80 = 165,993,440.80/x
  3. Step 3: Cross multiply
    408,156,743.20x = 612,235,114.80 × 165,993,440.80
  4. Step 4: Simplify right side
    408,156,743.20x = 101,627,013,284,235,008
  5. Step 5: Solve for x
    x = 101,627,013,284,235,008/408,156,743.20
  6. Step 6: Final answer
    x = 248,990,161.20

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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.