Home / 680,743,163.39-939,450,623.24-379,355,558.36

Finding the Fourth Proportional to 680,743,163.39, 939,450,623.24 and 379,355,558.36

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Solution

The fourth proportional to 680,743,163.39, 939,450,623.24 and 379,355,558.36 is: 523,524,634.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,743,163.39 : 939,450,623.24 = 379,355,558.36 : x
  2. Step 2: Convert to fraction form
    680,743,163.39/939,450,623.24 = 379,355,558.36/x
  3. Step 3: Cross multiply
    680,743,163.39x = 939,450,623.24 × 379,355,558.36
  4. Step 4: Simplify right side
    680,743,163.39x = 356,385,815,727,111,296
  5. Step 5: Solve for x
    x = 356,385,815,727,111,296/680,743,163.39
  6. Step 6: Final answer
    x = 523,524,634.39

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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.