Home / 252,355,644.80-378,568,896.60-79,814,466.80

Finding the Fourth Proportional to 252,355,644.80, 378,568,896.60 and 79,814,466.80

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Solution

The fourth proportional to 252,355,644.80, 378,568,896.60 and 79,814,466.80 is: 119,732,905.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,355,644.80 : 378,568,896.60 = 79,814,466.80 : x
  2. Step 2: Convert to fraction form
    252,355,644.80/378,568,896.60 = 79,814,466.80/x
  3. Step 3: Cross multiply
    252,355,644.80x = 378,568,896.60 × 79,814,466.80
  4. Step 4: Simplify right side
    252,355,644.80x = 30,215,274,629,193,332
  5. Step 5: Solve for x
    x = 30,215,274,629,193,332/252,355,644.80
  6. Step 6: Final answer
    x = 119,732,905.73

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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.