Home / 198,337,009.80-297,505,514.70-137,115,006.60

Finding the Fourth Proportional to 198,337,009.80, 297,505,514.70 and 137,115,006.60

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Solution

The fourth proportional to 198,337,009.80, 297,505,514.70 and 137,115,006.60 is: 205,672,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,337,009.80 : 297,505,514.70 = 137,115,006.60 : x
  2. Step 2: Convert to fraction form
    198,337,009.80/297,505,514.70 = 137,115,006.60/x
  3. Step 3: Cross multiply
    198,337,009.80x = 297,505,514.70 × 137,115,006.60
  4. Step 4: Simplify right side
    198,337,009.80x = 40,792,470,611,626,896
  5. Step 5: Solve for x
    x = 40,792,470,611,626,896/198,337,009.80
  6. Step 6: Final answer
    x = 205,672,509.90

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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.