Home / 398,584,289.74-550,046,662.30-222,372,312.44

Finding the Fourth Proportional to 398,584,289.74, 550,046,662.30 and 222,372,312.44

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Solution

The fourth proportional to 398,584,289.74, 550,046,662.30 and 222,372,312.44 is: 306,873,982.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,584,289.74 : 550,046,662.30 = 222,372,312.44 : x
  2. Step 2: Convert to fraction form
    398,584,289.74/550,046,662.30 = 222,372,312.44/x
  3. Step 3: Cross multiply
    398,584,289.74x = 550,046,662.30 × 222,372,312.44
  4. Step 4: Simplify right side
    398,584,289.74x = 122,315,148,245,554,752
  5. Step 5: Solve for x
    x = 122,315,148,245,554,752/398,584,289.74
  6. Step 6: Final answer
    x = 306,873,982.23

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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.