Home / 198,443,478-297,704,949.12-111,129,164.04

Finding the Fourth Proportional to 198,443,478, 297,704,949.12 and 111,129,164.04

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Solution

The fourth proportional to 198,443,478, 297,704,949.12 and 111,129,164.04 is: 166,715,996.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,443,478 : 297,704,949.12 = 111,129,164.04 : x
  2. Step 2: Convert to fraction form
    198,443,478/297,704,949.12 = 111,129,164.04/x
  3. Step 3: Cross multiply
    198,443,478x = 297,704,949.12 × 111,129,164.04
  4. Step 4: Simplify right side
    198,443,478x = 33,083,702,126,276,336
  5. Step 5: Solve for x
    x = 33,083,702,126,276,336/198,443,478
  6. Step 6: Final answer
    x = 166,715,996.21

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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.