Home / 7,231,693.12-9,979,858.98-3,968,811.43

Finding the Fourth Proportional to 7,231,693.12, 9,979,858.98 and 3,968,811.43

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Solution

The fourth proportional to 7,231,693.12, 9,979,858.98 and 3,968,811.43 is: 5,477,026.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,693.12 : 9,979,858.98 = 3,968,811.43 : x
  2. Step 2: Convert to fraction form
    7,231,693.12/9,979,858.98 = 3,968,811.43/x
  3. Step 3: Cross multiply
    7,231,693.12x = 9,979,858.98 × 3,968,811.43
  4. Step 4: Simplify right side
    7,231,693.12x = 39,608,178,389,612.15
  5. Step 5: Solve for x
    x = 39,608,178,389,612.15/7,231,693.12
  6. Step 6: Final answer
    x = 5,477,026.99

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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.