Home / 87,370,010.40-131,055,015.60-81,984,741.60

Finding the Fourth Proportional to 87,370,010.40, 131,055,015.60 and 81,984,741.60

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Solution

The fourth proportional to 87,370,010.40, 131,055,015.60 and 81,984,741.60 is: 122,977,112.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,370,010.40 : 131,055,015.60 = 81,984,741.60 : x
  2. Step 2: Convert to fraction form
    87,370,010.40/131,055,015.60 = 81,984,741.60/x
  3. Step 3: Cross multiply
    87,370,010.40x = 131,055,015.60 × 81,984,741.60
  4. Step 4: Simplify right side
    87,370,010.40x = 10,744,511,589,349,968
  5. Step 5: Solve for x
    x = 10,744,511,589,349,968/87,370,010.40
  6. Step 6: Final answer
    x = 122,977,112.40

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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.