Home / 129,373,893.96-178,551,629.28-73,632,867

Finding the Fourth Proportional to 129,373,893.96, 178,551,629.28 and 73,632,867

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Solution

The fourth proportional to 129,373,893.96, 178,551,629.28 and 73,632,867 is: 101,622,266.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,373,893.96 : 178,551,629.28 = 73,632,867 : x
  2. Step 2: Convert to fraction form
    129,373,893.96/178,551,629.28 = 73,632,867/x
  3. Step 3: Cross multiply
    129,373,893.96x = 178,551,629.28 × 73,632,867
  4. Step 4: Simplify right side
    129,373,893.96x = 13,147,268,371,407,546
  5. Step 5: Solve for x
    x = 13,147,268,371,407,546/129,373,893.96
  6. Step 6: Final answer
    x = 101,622,266.82

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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.