Home / 221,615,863.20-332,423,794.80-68,241,990.60

Finding the Fourth Proportional to 221,615,863.20, 332,423,794.80 and 68,241,990.60

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Solution

The fourth proportional to 221,615,863.20, 332,423,794.80 and 68,241,990.60 is: 102,362,985.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,615,863.20 : 332,423,794.80 = 68,241,990.60 : x
  2. Step 2: Convert to fraction form
    221,615,863.20/332,423,794.80 = 68,241,990.60/x
  3. Step 3: Cross multiply
    221,615,863.20x = 332,423,794.80 × 68,241,990.60
  4. Step 4: Simplify right side
    221,615,863.20x = 22,685,261,479,957,928
  5. Step 5: Solve for x
    x = 22,685,261,479,957,928/221,615,863.20
  6. Step 6: Final answer
    x = 102,362,985.90

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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.