Home / 298,949,810.40-448,424,715.60-221,465,712.60

Finding the Fourth Proportional to 298,949,810.40, 448,424,715.60 and 221,465,712.60

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Solution

The fourth proportional to 298,949,810.40, 448,424,715.60 and 221,465,712.60 is: 332,198,568.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,949,810.40 : 448,424,715.60 = 221,465,712.60 : x
  2. Step 2: Convert to fraction form
    298,949,810.40/448,424,715.60 = 221,465,712.60/x
  3. Step 3: Cross multiply
    298,949,810.40x = 448,424,715.60 × 221,465,712.60
  4. Step 4: Simplify right side
    298,949,810.40x = 99,310,699,187,806,336
  5. Step 5: Solve for x
    x = 99,310,699,187,806,336/298,949,810.40
  6. Step 6: Final answer
    x = 332,198,568.90

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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.