Home / 298,953,920.40-448,430,880.60-221,469,822.60

Finding the Fourth Proportional to 298,953,920.40, 448,430,880.60 and 221,469,822.60

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Solution

The fourth proportional to 298,953,920.40, 448,430,880.60 and 221,469,822.60 is: 332,204,733.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,953,920.40 : 448,430,880.60 = 221,469,822.60 : x
  2. Step 2: Convert to fraction form
    298,953,920.40/448,430,880.60 = 221,469,822.60/x
  3. Step 3: Cross multiply
    298,953,920.40x = 448,430,880.60 × 221,469,822.60
  4. Step 4: Simplify right side
    298,953,920.40x = 99,313,907,574,843,792
  5. Step 5: Solve for x
    x = 99,313,907,574,843,792/298,953,920.40
  6. Step 6: Final answer
    x = 332,204,733.90

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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.