Home / 149,321,858.60-206,064,121.86-80,644,226.60

Finding the Fourth Proportional to 149,321,858.60, 206,064,121.86 and 80,644,226.60

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Solution

The fourth proportional to 149,321,858.60, 206,064,121.86 and 80,644,226.60 is: 111,289,009.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,321,858.60 : 206,064,121.86 = 80,644,226.60 : x
  2. Step 2: Convert to fraction form
    149,321,858.60/206,064,121.86 = 80,644,226.60/x
  3. Step 3: Cross multiply
    149,321,858.60x = 206,064,121.86 × 80,644,226.60
  4. Step 4: Simplify right side
    149,321,858.60x = 16,617,881,737,407,854
  5. Step 5: Solve for x
    x = 16,617,881,737,407,854/149,321,858.60
  6. Step 6: Final answer
    x = 111,289,009.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.