Home / 19,903,174.80-27,474,855.65-13,380,588.78

Finding the Fourth Proportional to 19,903,174.80, 27,474,855.65 and 13,380,588.78

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Solution

The fourth proportional to 19,903,174.80, 27,474,855.65 and 13,380,588.78 is: 18,470,909.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903,174.80 : 27,474,855.65 = 13,380,588.78 : x
  2. Step 2: Convert to fraction form
    19,903,174.80/27,474,855.65 = 13,380,588.78/x
  3. Step 3: Cross multiply
    19,903,174.80x = 27,474,855.65 × 13,380,588.78
  4. Step 4: Simplify right side
    19,903,174.80x = 367,629,745,242,509.56
  5. Step 5: Solve for x
    x = 367,629,745,242,509.56/19,903,174.80
  6. Step 6: Final answer
    x = 18,470,909.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.