Home / 641,913,967.58-962,198,922.89-268,635,721.55

Finding the Fourth Proportional to 641,913,967.58, 962,198,922.89 and 268,635,721.55

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Solution

The fourth proportional to 641,913,967.58, 962,198,922.89 and 268,635,721.55 is: 402,672,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,913,967.58 : 962,198,922.89 = 268,635,721.55 : x
  2. Step 2: Convert to fraction form
    641,913,967.58/962,198,922.89 = 268,635,721.55/x
  3. Step 3: Cross multiply
    641,913,967.58x = 962,198,922.89 × 268,635,721.55
  4. Step 4: Simplify right side
    641,913,967.58x = 258,481,001,919,033,792
  5. Step 5: Solve for x
    x = 258,481,001,919,033,792/641,913,967.58
  6. Step 6: Final answer
    x = 402,672,343.92

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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.