Home / 872,891,006.49-1,309,508,994.48-320,198,566.62

Finding the Fourth Proportional to 872,891,006.49, 1,309,508,994.48 and 320,198,566.62

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Solution

The fourth proportional to 872,891,006.49, 1,309,508,994.48 and 320,198,566.62 is: 480,361,121.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,891,006.49 : 1,309,508,994.48 = 320,198,566.62 : x
  2. Step 2: Convert to fraction form
    872,891,006.49/1,309,508,994.48 = 320,198,566.62/x
  3. Step 3: Cross multiply
    872,891,006.49x = 1,309,508,994.48 × 320,198,566.62
  4. Step 4: Simplify right side
    872,891,006.49x = 419,302,903,008,493,504
  5. Step 5: Solve for x
    x = 419,302,903,008,493,504/872,891,006.49
  6. Step 6: Final answer
    x = 480,361,121.71

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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.