Home / 298,949,703.40-448,424,555.10-221,465,605.60

Finding the Fourth Proportional to 298,949,703.40, 448,424,555.10 and 221,465,605.60

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Solution

The fourth proportional to 298,949,703.40, 448,424,555.10 and 221,465,605.60 is: 332,198,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,949,703.40 : 448,424,555.10 = 221,465,605.60 : x
  2. Step 2: Convert to fraction form
    298,949,703.40/448,424,555.10 = 221,465,605.60/x
  3. Step 3: Cross multiply
    298,949,703.40x = 448,424,555.10 × 221,465,605.60
  4. Step 4: Simplify right side
    298,949,703.40x = 99,310,615,661,132,064
  5. Step 5: Solve for x
    x = 99,310,615,661,132,064/298,949,703.40
  6. Step 6: Final answer
    x = 332,198,408.40

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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.