Home / 864,076,839.97-1,295,590,394.51-338,816,672.66

Finding the Fourth Proportional to 864,076,839.97, 1,295,590,394.51 and 338,816,672.66

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Solution

The fourth proportional to 864,076,839.97, 1,295,590,394.51 and 338,816,672.66 is: 508,019,201.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,076,839.97 : 1,295,590,394.51 = 338,816,672.66 : x
  2. Step 2: Convert to fraction form
    864,076,839.97/1,295,590,394.51 = 338,816,672.66/x
  3. Step 3: Cross multiply
    864,076,839.97x = 1,295,590,394.51 × 338,816,672.66
  4. Step 4: Simplify right side
    864,076,839.97x = 438,967,626,603,253,568
  5. Step 5: Solve for x
    x = 438,967,626,603,253,568/864,076,839.97
  6. Step 6: Final answer
    x = 508,019,201.88

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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.