Home / 639,681,517.14-959,580,831.42-179,616,586.38

Finding the Fourth Proportional to 639,681,517.14, 959,580,831.42 and 179,616,586.38

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Solution

The fourth proportional to 639,681,517.14, 959,580,831.42 and 179,616,586.38 is: 269,441,321.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,681,517.14 : 959,580,831.42 = 179,616,586.38 : x
  2. Step 2: Convert to fraction form
    639,681,517.14/959,580,831.42 = 179,616,586.38/x
  3. Step 3: Cross multiply
    639,681,517.14x = 959,580,831.42 × 179,616,586.38
  4. Step 4: Simplify right side
    639,681,517.14x = 172,356,633,295,342,624
  5. Step 5: Solve for x
    x = 172,356,633,295,342,624/639,681,517.14
  6. Step 6: Final answer
    x = 269,441,321.47

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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.