Home / 117,269,358.75-161,846,067.41-67,709,649.21

Finding the Fourth Proportional to 117,269,358.75, 161,846,067.41 and 67,709,649.21

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Solution

The fourth proportional to 117,269,358.75, 161,846,067.41 and 67,709,649.21 is: 93,447,602.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,269,358.75 : 161,846,067.41 = 67,709,649.21 : x
  2. Step 2: Convert to fraction form
    117,269,358.75/161,846,067.41 = 67,709,649.21/x
  3. Step 3: Cross multiply
    117,269,358.75x = 161,846,067.41 × 67,709,649.21
  4. Step 4: Simplify right side
    117,269,358.75x = 10,958,540,450,349,112
  5. Step 5: Solve for x
    x = 10,958,540,450,349,112/117,269,358.75
  6. Step 6: Final answer
    x = 93,447,602.75

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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.