Home / 128,032,345.56-192,056,770.74-45,023,914.92

Finding the Fourth Proportional to 128,032,345.56, 192,056,770.74 and 45,023,914.92

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Solution

The fourth proportional to 128,032,345.56, 192,056,770.74 and 45,023,914.92 is: 67,538,774.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,032,345.56 : 192,056,770.74 = 45,023,914.92 : x
  2. Step 2: Convert to fraction form
    128,032,345.56/192,056,770.74 = 45,023,914.92/x
  3. Step 3: Cross multiply
    128,032,345.56x = 192,056,770.74 × 45,023,914.92
  4. Step 4: Simplify right side
    128,032,345.56x = 8,647,147,705,607,706
  5. Step 5: Solve for x
    x = 8,647,147,705,607,706/128,032,345.56
  6. Step 6: Final answer
    x = 67,538,774.42

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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.