Home / 13,590,697.28-18,755,164.89-7,479,125.78

Finding the Fourth Proportional to 13,590,697.28, 18,755,164.89 and 7,479,125.78

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Solution

The fourth proportional to 13,590,697.28, 18,755,164.89 and 7,479,125.78 is: 10,321,195.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,697.28 : 18,755,164.89 = 7,479,125.78 : x
  2. Step 2: Convert to fraction form
    13,590,697.28/18,755,164.89 = 7,479,125.78/x
  3. Step 3: Cross multiply
    13,590,697.28x = 18,755,164.89 × 7,479,125.78
  4. Step 4: Simplify right side
    13,590,697.28x = 140,272,237,143,174.05
  5. Step 5: Solve for x
    x = 140,272,237,143,174.05/13,590,697.28
  6. Step 6: Final answer
    x = 10,321,195.03

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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.