Home / 379,392,469.92-523,401,287.76-253,985,067.36

Finding the Fourth Proportional to 379,392,469.92, 523,401,287.76 and 253,985,067.36

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Solution

The fourth proportional to 379,392,469.92, 523,401,287.76 and 253,985,067.36 is: 350,392,065.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,392,469.92 : 523,401,287.76 = 253,985,067.36 : x
  2. Step 2: Convert to fraction form
    379,392,469.92/523,401,287.76 = 253,985,067.36/x
  3. Step 3: Cross multiply
    379,392,469.92x = 523,401,287.76 × 253,985,067.36
  4. Step 4: Simplify right side
    379,392,469.92x = 132,936,111,328,034,352
  5. Step 5: Solve for x
    x = 132,936,111,328,034,352/379,392,469.92
  6. Step 6: Final answer
    x = 350,392,065.92

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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.