Home / 198,583,722.40-297,875,583.60-137,361,719.20

Finding the Fourth Proportional to 198,583,722.40, 297,875,583.60 and 137,361,719.20

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Solution

The fourth proportional to 198,583,722.40, 297,875,583.60 and 137,361,719.20 is: 206,042,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,583,722.40 : 297,875,583.60 = 137,361,719.20 : x
  2. Step 2: Convert to fraction form
    198,583,722.40/297,875,583.60 = 137,361,719.20/x
  3. Step 3: Cross multiply
    198,583,722.40x = 297,875,583.60 × 137,361,719.20
  4. Step 4: Simplify right side
    198,583,722.40x = 40,916,702,270,999,328
  5. Step 5: Solve for x
    x = 40,916,702,270,999,328/198,583,722.40
  6. Step 6: Final answer
    x = 206,042,578.80

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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.