Home / 298,949,759.40-448,424,639.10-221,465,661.60

Finding the Fourth Proportional to 298,949,759.40, 448,424,639.10 and 221,465,661.60

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Solution

The fourth proportional to 298,949,759.40, 448,424,639.10 and 221,465,661.60 is: 332,198,492.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,949,759.40 : 448,424,639.10 = 221,465,661.60 : x
  2. Step 2: Convert to fraction form
    298,949,759.40/448,424,639.10 = 221,465,661.60/x
  3. Step 3: Cross multiply
    298,949,759.40x = 448,424,639.10 × 221,465,661.60
  4. Step 4: Simplify right side
    298,949,759.40x = 99,310,659,376,022,736
  5. Step 5: Solve for x
    x = 99,310,659,376,022,736/298,949,759.40
  6. Step 6: Final answer
    x = 332,198,492.40

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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.