Home / 221,639,906.80-332,459,860.20-149,080,495.60

Finding the Fourth Proportional to 221,639,906.80, 332,459,860.20 and 149,080,495.60

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Solution

The fourth proportional to 221,639,906.80, 332,459,860.20 and 149,080,495.60 is: 223,620,743.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,639,906.80 : 332,459,860.20 = 149,080,495.60 : x
  2. Step 2: Convert to fraction form
    221,639,906.80/332,459,860.20 = 149,080,495.60/x
  3. Step 3: Cross multiply
    221,639,906.80x = 332,459,860.20 × 149,080,495.60
  4. Step 4: Simplify right side
    221,639,906.80x = 49,563,280,725,722,712
  5. Step 5: Solve for x
    x = 49,563,280,725,722,712/221,639,906.80
  6. Step 6: Final answer
    x = 223,620,743.40

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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.