Home / 1,079,090,003.68-1,618,639,204.56-261,200,992.48

Finding the Fourth Proportional to 1,079,090,003.68, 1,618,639,204.56 and 261,200,992.48

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Solution

The fourth proportional to 1,079,090,003.68, 1,618,639,204.56 and 261,200,992.48 is: 391,802,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,090,003.68 : 1,618,639,204.56 = 261,200,992.48 : x
  2. Step 2: Convert to fraction form
    1,079,090,003.68/1,618,639,204.56 = 261,200,992.48/x
  3. Step 3: Cross multiply
    1,079,090,003.68x = 1,618,639,204.56 × 261,200,992.48
  4. Step 4: Simplify right side
    1,079,090,003.68x = 422,790,166,698,109,696
  5. Step 5: Solve for x
    x = 422,790,166,698,109,696/1,079,090,003.68
  6. Step 6: Final answer
    x = 391,802,505.13

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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.