Home / 129,247,291.20-193,965,415.20-90,983,539.20

Finding the Fourth Proportional to 129,247,291.20, 193,965,415.20 and 90,983,539.20

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Solution

The fourth proportional to 129,247,291.20, 193,965,415.20 and 90,983,539.20 is: 136,541,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,247,291.20 : 193,965,415.20 = 90,983,539.20 : x
  2. Step 2: Convert to fraction form
    129,247,291.20/193,965,415.20 = 90,983,539.20/x
  3. Step 3: Cross multiply
    129,247,291.20x = 193,965,415.20 × 90,983,539.20
  4. Step 4: Simplify right side
    129,247,291.20x = 17,647,659,957,293,476
  5. Step 5: Solve for x
    x = 17,647,659,957,293,476/129,247,291.20
  6. Step 6: Final answer
    x = 136,541,816.80

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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.