Home / 68,640,144.50-94,725,249.20-40,384,489.81

Finding the Fourth Proportional to 68,640,144.50, 94,725,249.20 and 40,384,489.81

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Solution

The fourth proportional to 68,640,144.50, 94,725,249.20 and 40,384,489.81 is: 55,731,684.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,640,144.50 : 94,725,249.20 = 40,384,489.81 : x
  2. Step 2: Convert to fraction form
    68,640,144.50/94,725,249.20 = 40,384,489.81/x
  3. Step 3: Cross multiply
    68,640,144.50x = 94,725,249.20 × 40,384,489.81
  4. Step 4: Simplify right side
    68,640,144.50x = 3,825,430,860,628,374.50
  5. Step 5: Solve for x
    x = 3,825,430,860,628,374.50/68,640,144.50
  6. Step 6: Final answer
    x = 55,731,684.25

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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.