Home / 142,435,733.53-196,557,090.60-78,858,906.22

Finding the Fourth Proportional to 142,435,733.53, 196,557,090.60 and 78,858,906.22

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Solution

The fourth proportional to 142,435,733.53, 196,557,090.60 and 78,858,906.22 is: 108,822,953.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,435,733.53 : 196,557,090.60 = 78,858,906.22 : x
  2. Step 2: Convert to fraction form
    142,435,733.53/196,557,090.60 = 78,858,906.22/x
  3. Step 3: Cross multiply
    142,435,733.53x = 196,557,090.60 × 78,858,906.22
  4. Step 4: Simplify right side
    142,435,733.53x = 15,500,277,174,501,442
  5. Step 5: Solve for x
    x = 15,500,277,174,501,442/142,435,733.53
  6. Step 6: Final answer
    x = 108,822,953.27

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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.