Home / 252,392,309.80-378,623,894.10-79,851,131.80

Finding the Fourth Proportional to 252,392,309.80, 378,623,894.10 and 79,851,131.80

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Solution

The fourth proportional to 252,392,309.80, 378,623,894.10 and 79,851,131.80 is: 119,787,906.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,392,309.80 : 378,623,894.10 = 79,851,131.80 : x
  2. Step 2: Convert to fraction form
    252,392,309.80/378,623,894.10 = 79,851,131.80/x
  3. Step 3: Cross multiply
    252,392,309.80x = 378,623,894.10 × 79,851,131.80
  4. Step 4: Simplify right side
    252,392,309.80x = 30,233,546,470,408,344
  5. Step 5: Solve for x
    x = 30,233,546,470,408,344/252,392,309.80
  6. Step 6: Final answer
    x = 119,787,906.75

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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.