Home / 188,012,945.21-259,458,803.46-117,489,506.14

Finding the Fourth Proportional to 188,012,945.21, 259,458,803.46 and 117,489,506.14

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Solution

The fourth proportional to 188,012,945.21, 259,458,803.46 and 117,489,506.14 is: 162,136,105.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,012,945.21 : 259,458,803.46 = 117,489,506.14 : x
  2. Step 2: Convert to fraction form
    188,012,945.21/259,458,803.46 = 117,489,506.14/x
  3. Step 3: Cross multiply
    188,012,945.21x = 259,458,803.46 × 117,489,506.14
  4. Step 4: Simplify right side
    188,012,945.21x = 30,483,686,681,542,076
  5. Step 5: Solve for x
    x = 30,483,686,681,542,076/188,012,945.21
  6. Step 6: Final answer
    x = 162,136,105.29

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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.