Home / 172,628,449.68-258,979,999.32-91,837,675.92

Finding the Fourth Proportional to 172,628,449.68, 258,979,999.32 and 91,837,675.92

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Solution

The fourth proportional to 172,628,449.68, 258,979,999.32 and 91,837,675.92 is: 137,776,370.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,628,449.68 : 258,979,999.32 = 91,837,675.92 : x
  2. Step 2: Convert to fraction form
    172,628,449.68/258,979,999.32 = 91,837,675.92/x
  3. Step 3: Cross multiply
    172,628,449.68x = 258,979,999.32 × 91,837,675.92
  4. Step 4: Simplify right side
    172,628,449.68x = 23,784,121,247,311,980
  5. Step 5: Solve for x
    x = 23,784,121,247,311,980/172,628,449.68
  6. Step 6: Final answer
    x = 137,776,370.53

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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.