Home / 663,458,243.20-995,635,262.40-432,865,628.80

Finding the Fourth Proportional to 663,458,243.20, 995,635,262.40 and 432,865,628.80

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Solution

The fourth proportional to 663,458,243.20, 995,635,262.40 and 432,865,628.80 is: 649,590,668.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,458,243.20 : 995,635,262.40 = 432,865,628.80 : x
  2. Step 2: Convert to fraction form
    663,458,243.20/995,635,262.40 = 432,865,628.80/x
  3. Step 3: Cross multiply
    663,458,243.20x = 995,635,262.40 × 432,865,628.80
  4. Step 4: Simplify right side
    663,458,243.20x = 430,976,283,914,228,992
  5. Step 5: Solve for x
    x = 430,976,283,914,228,992/663,458,243.20
  6. Step 6: Final answer
    x = 649,590,668.79

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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.