Home / 81,915,544.80-122,873,317.20-49,771,893.60

Finding the Fourth Proportional to 81,915,544.80, 122,873,317.20 and 49,771,893.60

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Solution

The fourth proportional to 81,915,544.80, 122,873,317.20 and 49,771,893.60 is: 74,657,840.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,915,544.80 : 122,873,317.20 = 49,771,893.60 : x
  2. Step 2: Convert to fraction form
    81,915,544.80/122,873,317.20 = 49,771,893.60/x
  3. Step 3: Cross multiply
    81,915,544.80x = 122,873,317.20 × 49,771,893.60
  4. Step 4: Simplify right side
    81,915,544.80x = 6,115,637,669,957,450
  5. Step 5: Solve for x
    x = 6,115,637,669,957,450/81,915,544.80
  6. Step 6: Final answer
    x = 74,657,840.40

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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.