Home / 198,194,722.47-297,295,073.10-68,806,442.97

Finding the Fourth Proportional to 198,194,722.47, 297,295,073.10 and 68,806,442.97

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Solution

The fourth proportional to 198,194,722.47, 297,295,073.10 and 68,806,442.97 is: 103,210,702.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,194,722.47 : 297,295,073.10 = 68,806,442.97 : x
  2. Step 2: Convert to fraction form
    198,194,722.47/297,295,073.10 = 68,806,442.97/x
  3. Step 3: Cross multiply
    198,194,722.47x = 297,295,073.10 × 68,806,442.97
  4. Step 4: Simplify right side
    198,194,722.47x = 20,455,816,492,517,132
  5. Step 5: Solve for x
    x = 20,455,816,492,517,132/198,194,722.47
  6. Step 6: Final answer
    x = 103,210,702.27

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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.