Home / 206,711,997.80-310,067,996.70-177,990,564.20

Finding the Fourth Proportional to 206,711,997.80, 310,067,996.70 and 177,990,564.20

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Solution

The fourth proportional to 206,711,997.80, 310,067,996.70 and 177,990,564.20 is: 266,985,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,711,997.80 : 310,067,996.70 = 177,990,564.20 : x
  2. Step 2: Convert to fraction form
    206,711,997.80/310,067,996.70 = 177,990,564.20/x
  3. Step 3: Cross multiply
    206,711,997.80x = 310,067,996.70 × 177,990,564.20
  4. Step 4: Simplify right side
    206,711,997.80x = 55,189,177,672,996,736
  5. Step 5: Solve for x
    x = 55,189,177,672,996,736/206,711,997.80
  6. Step 6: Final answer
    x = 266,985,846.30

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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.