Home / 148,684,894.32-205,188,571.47-81,708,016.44

Finding the Fourth Proportional to 148,684,894.32, 205,188,571.47 and 81,708,016.44

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Solution

The fourth proportional to 148,684,894.32, 205,188,571.47 and 81,708,016.44 is: 112,758,940.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,684,894.32 : 205,188,571.47 = 81,708,016.44 : x
  2. Step 2: Convert to fraction form
    148,684,894.32/205,188,571.47 = 81,708,016.44/x
  3. Step 3: Cross multiply
    148,684,894.32x = 205,188,571.47 × 81,708,016.44
  4. Step 4: Simplify right side
    148,684,894.32x = 16,765,551,170,970,874
  5. Step 5: Solve for x
    x = 16,765,551,170,970,874/148,684,894.32
  6. Step 6: Final answer
    x = 112,758,940.63

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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.