Home / 81,793,977.60-122,629,949.10-49,439,062.20

Finding the Fourth Proportional to 81,793,977.60, 122,629,949.10 and 49,439,062.20

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Solution

The fourth proportional to 81,793,977.60, 122,629,949.10 and 49,439,062.20 is: 74,121,712.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,793,977.60 : 122,629,949.10 = 49,439,062.20 : x
  2. Step 2: Convert to fraction form
    81,793,977.60/122,629,949.10 = 49,439,062.20/x
  3. Step 3: Cross multiply
    81,793,977.60x = 122,629,949.10 × 49,439,062.20
  4. Step 4: Simplify right side
    81,793,977.60x = 6,062,709,681,137,734
  5. Step 5: Solve for x
    x = 6,062,709,681,137,734/81,793,977.60
  6. Step 6: Final answer
    x = 74,121,712.37

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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.