Home / 138,158,329.34-190,589,665.31-82,364,435.54

Finding the Fourth Proportional to 138,158,329.34, 190,589,665.31 and 82,364,435.54

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Solution

The fourth proportional to 138,158,329.34, 190,589,665.31 and 82,364,435.54 is: 113,621,887.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,158,329.34 : 190,589,665.31 = 82,364,435.54 : x
  2. Step 2: Convert to fraction form
    138,158,329.34/190,589,665.31 = 82,364,435.54/x
  3. Step 3: Cross multiply
    138,158,329.34x = 190,589,665.31 × 82,364,435.54
  4. Step 4: Simplify right side
    138,158,329.34x = 15,697,810,202,603,848
  5. Step 5: Solve for x
    x = 15,697,810,202,603,848/138,158,329.34
  6. Step 6: Final answer
    x = 113,621,887.86

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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.