Home / 221,336,138.40-332,004,207.60-218,312,829.60

Finding the Fourth Proportional to 221,336,138.40, 332,004,207.60 and 218,312,829.60

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Solution

The fourth proportional to 221,336,138.40, 332,004,207.60 and 218,312,829.60 is: 327,469,244.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,336,138.40 : 332,004,207.60 = 218,312,829.60 : x
  2. Step 2: Convert to fraction form
    221,336,138.40/332,004,207.60 = 218,312,829.60/x
  3. Step 3: Cross multiply
    221,336,138.40x = 332,004,207.60 × 218,312,829.60
  4. Step 4: Simplify right side
    221,336,138.40x = 72,480,778,000,261,824
  5. Step 5: Solve for x
    x = 72,480,778,000,261,824/221,336,138.40
  6. Step 6: Final answer
    x = 327,469,244.40

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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.