Home / 252,660,081.20-378,990,121.80-143,443,050.80

Finding the Fourth Proportional to 252,660,081.20, 378,990,121.80 and 143,443,050.80

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Solution

The fourth proportional to 252,660,081.20, 378,990,121.80 and 143,443,050.80 is: 215,164,576.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,660,081.20 : 378,990,121.80 = 143,443,050.80 : x
  2. Step 2: Convert to fraction form
    252,660,081.20/378,990,121.80 = 143,443,050.80/x
  3. Step 3: Cross multiply
    252,660,081.20x = 378,990,121.80 × 143,443,050.80
  4. Step 4: Simplify right side
    252,660,081.20x = 54,363,499,294,055,592
  5. Step 5: Solve for x
    x = 54,363,499,294,055,592/252,660,081.20
  6. Step 6: Final answer
    x = 215,164,576.20

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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.