Home / 133,143,190.20-199,588,814.10-78,597,660.60

Finding the Fourth Proportional to 133,143,190.20, 199,588,814.10 and 78,597,660.60

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Solution

The fourth proportional to 133,143,190.20, 199,588,814.10 and 78,597,660.60 is: 117,822,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,143,190.20 : 199,588,814.10 = 78,597,660.60 : x
  2. Step 2: Convert to fraction form
    133,143,190.20/199,588,814.10 = 78,597,660.60/x
  3. Step 3: Cross multiply
    133,143,190.20x = 199,588,814.10 × 78,597,660.60
  4. Step 4: Simplify right side
    133,143,190.20x = 15,687,213,870,188,292
  5. Step 5: Solve for x
    x = 15,687,213,870,188,292/133,143,190.20
  6. Step 6: Final answer
    x = 117,822,127.04

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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.