Home / 132,313,979.20-198,477,522.40-68,612,987.20

Finding the Fourth Proportional to 132,313,979.20, 198,477,522.40 and 68,612,987.20

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Solution

The fourth proportional to 132,313,979.20, 198,477,522.40 and 68,612,987.20 is: 102,922,879.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,313,979.20 : 198,477,522.40 = 68,612,987.20 : x
  2. Step 2: Convert to fraction form
    132,313,979.20/198,477,522.40 = 68,612,987.20/x
  3. Step 3: Cross multiply
    132,313,979.20x = 198,477,522.40 × 68,612,987.20
  4. Step 4: Simplify right side
    132,313,979.20x = 13,618,135,703,918,914
  5. Step 5: Solve for x
    x = 13,618,135,703,918,914/132,313,979.20
  6. Step 6: Final answer
    x = 102,922,879.25

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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.