Home / 142,108,485.39-196,027,868.64-85,553,893.78

Finding the Fourth Proportional to 142,108,485.39, 196,027,868.64 and 85,553,893.78

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Solution

The fourth proportional to 142,108,485.39, 196,027,868.64 and 85,553,893.78 is: 118,015,102.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,108,485.39 : 196,027,868.64 = 85,553,893.78 : x
  2. Step 2: Convert to fraction form
    142,108,485.39/196,027,868.64 = 85,553,893.78/x
  3. Step 3: Cross multiply
    142,108,485.39x = 196,027,868.64 × 85,553,893.78
  4. Step 4: Simplify right side
    142,108,485.39x = 16,770,947,451,546,352
  5. Step 5: Solve for x
    x = 16,770,947,451,546,352/142,108,485.39
  6. Step 6: Final answer
    x = 118,015,102.37

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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.