Home / 868,252,806-1,198,053,992.52-515,819,738.88

Finding the Fourth Proportional to 868,252,806, 1,198,053,992.52 and 515,819,738.88

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Solution

The fourth proportional to 868,252,806, 1,198,053,992.52 and 515,819,738.88 is: 711,751,109.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,252,806 : 1,198,053,992.52 = 515,819,738.88 : x
  2. Step 2: Convert to fraction form
    868,252,806/1,198,053,992.52 = 515,819,738.88/x
  3. Step 3: Cross multiply
    868,252,806x = 1,198,053,992.52 × 515,819,738.88
  4. Step 4: Simplify right side
    868,252,806x = 617,979,897,585,807,872
  5. Step 5: Solve for x
    x = 617,979,897,585,807,872/868,252,806
  6. Step 6: Final answer
    x = 711,751,109.03

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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.