Home / 68,640,143.25-94,725,247.47-40,384,488.56

Finding the Fourth Proportional to 68,640,143.25, 94,725,247.47 and 40,384,488.56

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Solution

The fourth proportional to 68,640,143.25, 94,725,247.47 and 40,384,488.56 is: 55,731,682.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,640,143.25 : 94,725,247.47 = 40,384,488.56 : x
  2. Step 2: Convert to fraction form
    68,640,143.25/94,725,247.47 = 40,384,488.56/x
  3. Step 3: Cross multiply
    68,640,143.25x = 94,725,247.47 × 40,384,488.56
  4. Step 4: Simplify right side
    68,640,143.25x = 3,825,430,672,321,757.50
  5. Step 5: Solve for x
    x = 3,825,430,672,321,757.50/68,640,143.25
  6. Step 6: Final answer
    x = 55,731,682.53

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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.