Home / 198,008,457.30-297,296,121.15-111,915,015.30

Finding the Fourth Proportional to 198,008,457.30, 297,296,121.15 and 111,915,015.30

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Solution

The fourth proportional to 198,008,457.30, 297,296,121.15 and 111,915,015.30 is: 168,032,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,008,457.30 : 297,296,121.15 = 111,915,015.30 : x
  2. Step 2: Convert to fraction form
    198,008,457.30/297,296,121.15 = 111,915,015.30/x
  3. Step 3: Cross multiply
    198,008,457.30x = 297,296,121.15 × 111,915,015.30
  4. Step 4: Simplify right side
    198,008,457.30x = 33,271,899,947,132,900
  5. Step 5: Solve for x
    x = 33,271,899,947,132,900/198,008,457.30
  6. Step 6: Final answer
    x = 168,032,721.43

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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.