Home / 18,664,057.70-27,996,086.55-5,200,885.70

Finding the Fourth Proportional to 18,664,057.70, 27,996,086.55 and 5,200,885.70

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Solution

The fourth proportional to 18,664,057.70, 27,996,086.55 and 5,200,885.70 is: 7,801,328.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664,057.70 : 27,996,086.55 = 5,200,885.70 : x
  2. Step 2: Convert to fraction form
    18,664,057.70/27,996,086.55 = 5,200,885.70/x
  3. Step 3: Cross multiply
    18,664,057.70x = 27,996,086.55 × 5,200,885.70
  4. Step 4: Simplify right side
    18,664,057.70x = 145,604,446,193,857.34
  5. Step 5: Solve for x
    x = 145,604,446,193,857.34/18,664,057.70
  6. Step 6: Final answer
    x = 7,801,328.55

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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.