Home / 819,575,039.57-1,131,016,938.86-443,231,619.14

Finding the Fourth Proportional to 819,575,039.57, 1,131,016,938.86 and 443,231,619.14

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Solution

The fourth proportional to 819,575,039.57, 1,131,016,938.86 and 443,231,619.14 is: 611,661,464.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,575,039.57 : 1,131,016,938.86 = 443,231,619.14 : x
  2. Step 2: Convert to fraction form
    819,575,039.57/1,131,016,938.86 = 443,231,619.14/x
  3. Step 3: Cross multiply
    819,575,039.57x = 1,131,016,938.86 × 443,231,619.14
  4. Step 4: Simplify right side
    819,575,039.57x = 501,302,469,081,137,152
  5. Step 5: Solve for x
    x = 501,302,469,081,137,152/819,575,039.57
  6. Step 6: Final answer
    x = 611,661,464.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.