Home / 851,818,960.80-1,277,224,556.40-443,672,272.80

Finding the Fourth Proportional to 851,818,960.80, 1,277,224,556.40 and 443,672,272.80

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Solution

The fourth proportional to 851,818,960.80, 1,277,224,556.40 and 443,672,272.80 is: 665,245,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,818,960.80 : 1,277,224,556.40 = 443,672,272.80 : x
  2. Step 2: Convert to fraction form
    851,818,960.80/1,277,224,556.40 = 443,672,272.80/x
  3. Step 3: Cross multiply
    851,818,960.80x = 1,277,224,556.40 × 443,672,272.80
  4. Step 4: Simplify right side
    851,818,960.80x = 566,669,121,813,959,872
  5. Step 5: Solve for x
    x = 566,669,121,813,959,872/851,818,960.80
  6. Step 6: Final answer
    x = 665,245,959.40

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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.