Home / 129,329,168.20-193,993,752.30-83,412,665.80

Finding the Fourth Proportional to 129,329,168.20, 193,993,752.30 and 83,412,665.80

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Solution

The fourth proportional to 129,329,168.20, 193,993,752.30 and 83,412,665.80 is: 125,118,998.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,329,168.20 : 193,993,752.30 = 83,412,665.80 : x
  2. Step 2: Convert to fraction form
    129,329,168.20/193,993,752.30 = 83,412,665.80/x
  3. Step 3: Cross multiply
    129,329,168.20x = 193,993,752.30 × 83,412,665.80
  4. Step 4: Simplify right side
    129,329,168.20x = 16,181,536,027,887,882
  5. Step 5: Solve for x
    x = 16,181,536,027,887,882/129,329,168.20
  6. Step 6: Final answer
    x = 125,118,998.70

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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.