Home / 129,296,711.70-193,945,067.55-38,420,300.70

Finding the Fourth Proportional to 129,296,711.70, 193,945,067.55 and 38,420,300.70

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Solution

The fourth proportional to 129,296,711.70, 193,945,067.55 and 38,420,300.70 is: 57,630,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,296,711.70 : 193,945,067.55 = 38,420,300.70 : x
  2. Step 2: Convert to fraction form
    129,296,711.70/193,945,067.55 = 38,420,300.70/x
  3. Step 3: Cross multiply
    129,296,711.70x = 193,945,067.55 × 38,420,300.70
  4. Step 4: Simplify right side
    129,296,711.70x = 7,451,427,814,552,813
  5. Step 5: Solve for x
    x = 7,451,427,814,552,813/129,296,711.70
  6. Step 6: Final answer
    x = 57,630,451.05

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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.