Home / 398,835,786.92-550,485,218.80-233,876,500.52

Finding the Fourth Proportional to 398,835,786.92, 550,485,218.80 and 233,876,500.52

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Solution

The fourth proportional to 398,835,786.92, 550,485,218.80 and 233,876,500.52 is: 322,803,421.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,835,786.92 : 550,485,218.80 = 233,876,500.52 : x
  2. Step 2: Convert to fraction form
    398,835,786.92/550,485,218.80 = 233,876,500.52/x
  3. Step 3: Cross multiply
    398,835,786.92x = 550,485,218.80 × 233,876,500.52
  4. Step 4: Simplify right side
    398,835,786.92x = 128,745,556,560,930,512
  5. Step 5: Solve for x
    x = 128,745,556,560,930,512/398,835,786.92
  6. Step 6: Final answer
    x = 322,803,421.32

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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.