Home / 128,374,780.64-192,654,110.46-54,650,249.64

Finding the Fourth Proportional to 128,374,780.64, 192,654,110.46 and 54,650,249.64

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Solution

The fourth proportional to 128,374,780.64, 192,654,110.46 and 54,650,249.64 is: 82,014,513.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,374,780.64 : 192,654,110.46 = 54,650,249.64 : x
  2. Step 2: Convert to fraction form
    128,374,780.64/192,654,110.46 = 54,650,249.64/x
  3. Step 3: Cross multiply
    128,374,780.64x = 192,654,110.46 × 54,650,249.64
  4. Step 4: Simplify right side
    128,374,780.64x = 10,528,595,230,708,392
  5. Step 5: Solve for x
    x = 10,528,595,230,708,392/128,374,780.64
  6. Step 6: Final answer
    x = 82,014,513.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.