Home / 81,242,736.45-121,894,441.40-32,734,352.31

Finding the Fourth Proportional to 81,242,736.45, 121,894,441.40 and 32,734,352.31

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Solution

The fourth proportional to 81,242,736.45, 121,894,441.40 and 32,734,352.31 is: 49,113,751.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,242,736.45 : 121,894,441.40 = 32,734,352.31 : x
  2. Step 2: Convert to fraction form
    81,242,736.45/121,894,441.40 = 32,734,352.31/x
  3. Step 3: Cross multiply
    81,242,736.45x = 121,894,441.40 × 32,734,352.31
  4. Step 4: Simplify right side
    81,242,736.45x = 3,990,135,589,418,249.50
  5. Step 5: Solve for x
    x = 3,990,135,589,418,249.50/81,242,736.45
  6. Step 6: Final answer
    x = 49,113,751.75

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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.