Home / 198,008,442.80-297,296,099.40-111,915,000.80

Finding the Fourth Proportional to 198,008,442.80, 297,296,099.40 and 111,915,000.80

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Solution

The fourth proportional to 198,008,442.80, 297,296,099.40 and 111,915,000.80 is: 168,032,699.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,008,442.80 : 297,296,099.40 = 111,915,000.80 : x
  2. Step 2: Convert to fraction form
    198,008,442.80/297,296,099.40 = 111,915,000.80/x
  3. Step 3: Cross multiply
    198,008,442.80x = 297,296,099.40 × 111,915,000.80
  4. Step 4: Simplify right side
    198,008,442.80x = 33,271,893,202,187,876
  5. Step 5: Solve for x
    x = 33,271,893,202,187,876/198,008,442.80
  6. Step 6: Final answer
    x = 168,032,699.68

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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.