Home / 81,456,010.90-122,151,539.40-26,853,400.60

Finding the Fourth Proportional to 81,456,010.90, 122,151,539.40 and 26,853,400.60

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Solution

The fourth proportional to 81,456,010.90, 122,151,539.40 and 26,853,400.60 is: 40,269,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,456,010.90 : 122,151,539.40 = 26,853,400.60 : x
  2. Step 2: Convert to fraction form
    81,456,010.90/122,151,539.40 = 26,853,400.60/x
  3. Step 3: Cross multiply
    81,456,010.90x = 122,151,539.40 × 26,853,400.60
  4. Step 4: Simplify right side
    81,456,010.90x = 3,280,184,221,414,884
  5. Step 5: Solve for x
    x = 3,280,184,221,414,884/81,456,010.90
  6. Step 6: Final answer
    x = 40,269,394.30

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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.