Home / 203,942,891,972.07-281,442,065,898.98-111,245,766,553.12

Finding the Fourth Proportional to 203,942,891,972.07, 281,442,065,898.98 and 111,245,766,553.12

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Solution

The fourth proportional to 203,942,891,972.07, 281,442,065,898.98 and 111,245,766,553.12 is: 153,519,635,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,942,891,972.07 : 281,442,065,898.98 = 111,245,766,553.12 : x
  2. Step 2: Convert to fraction form
    203,942,891,972.07/281,442,065,898.98 = 111,245,766,553.12/x
  3. Step 3: Cross multiply
    203,942,891,972.07x = 281,442,065,898.98 × 111,245,766,553.12
  4. Step 4: Simplify right side
    203,942,891,972.07x = 31,309,238,361,225,739,370,496
  5. Step 5: Solve for x
    x = 31,309,238,361,225,739,370,496/203,942,891,972.07
  6. Step 6: Final answer
    x = 153,519,635,121.75

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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.