Home / 131,003,999.20-196,505,998.80-100,770,911.20

Finding the Fourth Proportional to 131,003,999.20, 196,505,998.80 and 100,770,911.20

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Solution

The fourth proportional to 131,003,999.20, 196,505,998.80 and 100,770,911.20 is: 151,156,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,003,999.20 : 196,505,998.80 = 100,770,911.20 : x
  2. Step 2: Convert to fraction form
    131,003,999.20/196,505,998.80 = 100,770,911.20/x
  3. Step 3: Cross multiply
    131,003,999.20x = 196,505,998.80 × 100,770,911.20
  4. Step 4: Simplify right side
    131,003,999.20x = 19,802,088,555,342,108
  5. Step 5: Solve for x
    x = 19,802,088,555,342,108/131,003,999.20
  6. Step 6: Final answer
    x = 151,156,366.80

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1.5x scale

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.