Home / 853,124,805.80-1,279,687,208.70-754,489,356.20

Finding the Fourth Proportional to 853,124,805.80, 1,279,687,208.70 and 754,489,356.20

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Solution

The fourth proportional to 853,124,805.80, 1,279,687,208.70 and 754,489,356.20 is: 1,131,734,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,124,805.80 : 1,279,687,208.70 = 754,489,356.20 : x
  2. Step 2: Convert to fraction form
    853,124,805.80/1,279,687,208.70 = 754,489,356.20/x
  3. Step 3: Cross multiply
    853,124,805.80x = 1,279,687,208.70 × 754,489,356.20
  4. Step 4: Simplify right side
    853,124,805.80x = 965,510,378,229,438,080
  5. Step 5: Solve for x
    x = 965,510,378,229,438,080/853,124,805.80
  6. Step 6: Final answer
    x = 1,131,734,034.30

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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.