Home / 378,234,231.26-521,940,760.03-219,452,054.81

Finding the Fourth Proportional to 378,234,231.26, 521,940,760.03 and 219,452,054.81

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Solution

The fourth proportional to 378,234,231.26, 521,940,760.03 and 219,452,054.81 is: 302,830,793.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,234,231.26 : 521,940,760.03 = 219,452,054.81 : x
  2. Step 2: Convert to fraction form
    378,234,231.26/521,940,760.03 = 219,452,054.81/x
  3. Step 3: Cross multiply
    378,234,231.26x = 521,940,760.03 × 219,452,054.81
  4. Step 4: Simplify right side
    378,234,231.26x = 114,540,972,275,823,136
  5. Step 5: Solve for x
    x = 114,540,972,275,823,136/378,234,231.26
  6. Step 6: Final answer
    x = 302,830,793.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.