Home / 61,164,961.60-91,747,442.40-20,775,445.60

Finding the Fourth Proportional to 61,164,961.60, 91,747,442.40 and 20,775,445.60

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Solution

The fourth proportional to 61,164,961.60, 91,747,442.40 and 20,775,445.60 is: 31,163,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,164,961.60 : 91,747,442.40 = 20,775,445.60 : x
  2. Step 2: Convert to fraction form
    61,164,961.60/91,747,442.40 = 20,775,445.60/x
  3. Step 3: Cross multiply
    61,164,961.60x = 91,747,442.40 × 20,775,445.60
  4. Step 4: Simplify right side
    61,164,961.60x = 1,906,093,998,520,333.75
  5. Step 5: Solve for x
    x = 1,906,093,998,520,333.75/61,164,961.60
  6. Step 6: Final answer
    x = 31,163,168.40

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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.