Home / 639,566,186.81-959,440,664.00-196,946,255.21

Finding the Fourth Proportional to 639,566,186.81, 959,440,664.00 and 196,946,255.21

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Solution

The fourth proportional to 639,566,186.81, 959,440,664.00 and 196,946,255.21 is: 295,447,523.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,566,186.81 : 959,440,664.00 = 196,946,255.21 : x
  2. Step 2: Convert to fraction form
    639,566,186.81/959,440,664.00 = 196,946,255.21/x
  3. Step 3: Cross multiply
    639,566,186.81x = 959,440,664.00 × 196,946,255.21
  4. Step 4: Simplify right side
    639,566,186.81x = 188,958,245,866,691,040
  5. Step 5: Solve for x
    x = 188,958,245,866,691,040/639,566,186.81
  6. Step 6: Final answer
    x = 295,447,523.28

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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.