Home / 138,629,403.39-191,307,874.98-75,904,361.70

Finding the Fourth Proportional to 138,629,403.39, 191,307,874.98 and 75,904,361.70

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Solution

The fourth proportional to 138,629,403.39, 191,307,874.98 and 75,904,361.70 is: 104,747,634.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,629,403.39 : 191,307,874.98 = 75,904,361.70 : x
  2. Step 2: Convert to fraction form
    138,629,403.39/191,307,874.98 = 75,904,361.70/x
  3. Step 3: Cross multiply
    138,629,403.39x = 191,307,874.98 × 75,904,361.70
  4. Step 4: Simplify right side
    138,629,403.39x = 14,521,102,138,540,300
  5. Step 5: Solve for x
    x = 14,521,102,138,540,300/138,629,403.39
  6. Step 6: Final answer
    x = 104,747,634.94

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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.