Home / 699,407,998.20-1,049,111,997.30-214,670,820.60

Finding the Fourth Proportional to 699,407,998.20, 1,049,111,997.30 and 214,670,820.60

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Solution

The fourth proportional to 699,407,998.20, 1,049,111,997.30 and 214,670,820.60 is: 322,006,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,407,998.20 : 1,049,111,997.30 = 214,670,820.60 : x
  2. Step 2: Convert to fraction form
    699,407,998.20/1,049,111,997.30 = 214,670,820.60/x
  3. Step 3: Cross multiply
    699,407,998.20x = 1,049,111,997.30 × 214,670,820.60
  4. Step 4: Simplify right side
    699,407,998.20x = 225,213,733,361,695,968
  5. Step 5: Solve for x
    x = 225,213,733,361,695,968/699,407,998.20
  6. Step 6: Final answer
    x = 322,006,230.90

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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.