Home / 426,163,003.20-639,244,504.80-196,580,491.20

Finding the Fourth Proportional to 426,163,003.20, 639,244,504.80 and 196,580,491.20

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Solution

The fourth proportional to 426,163,003.20, 639,244,504.80 and 196,580,491.20 is: 294,870,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,163,003.20 : 639,244,504.80 = 196,580,491.20 : x
  2. Step 2: Convert to fraction form
    426,163,003.20/639,244,504.80 = 196,580,491.20/x
  3. Step 3: Cross multiply
    426,163,003.20x = 639,244,504.80 × 196,580,491.20
  4. Step 4: Simplify right side
    426,163,003.20x = 125,662,998,750,484,736
  5. Step 5: Solve for x
    x = 125,662,998,750,484,736/426,163,003.20
  6. Step 6: Final answer
    x = 294,870,736.80

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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.