Home / 512,999,444,739.85-707,959,644,607.40-281,521,247,729.28

Finding the Fourth Proportional to 512,999,444,739.85, 707,959,644,607.40 and 281,521,247,729.28

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Solution

The fourth proportional to 512,999,444,739.85, 707,959,644,607.40 and 281,521,247,729.28 is: 388,510,522,838.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,999,444,739.85 : 707,959,644,607.40 = 281,521,247,729.28 : x
  2. Step 2: Convert to fraction form
    512,999,444,739.85/707,959,644,607.40 = 281,521,247,729.28/x
  3. Step 3: Cross multiply
    512,999,444,739.85x = 707,959,644,607.40 × 281,521,247,729.28
  4. Step 4: Simplify right side
    512,999,444,739.85x = 199,305,682,491,852,921,503,744
  5. Step 5: Solve for x
    x = 199,305,682,491,852,921,503,744/512,999,444,739.85
  6. Step 6: Final answer
    x = 388,510,522,838.72

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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.