Home / 10,620,129.72-15,930,287.52-3,431,664.84

Finding the Fourth Proportional to 10,620,129.72, 15,930,287.52 and 3,431,664.84

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Solution

The fourth proportional to 10,620,129.72, 15,930,287.52 and 3,431,664.84 is: 5,147,527.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620,129.72 : 15,930,287.52 = 3,431,664.84 : x
  2. Step 2: Convert to fraction form
    10,620,129.72/15,930,287.52 = 3,431,664.84/x
  3. Step 3: Cross multiply
    10,620,129.72x = 15,930,287.52 × 3,431,664.84
  4. Step 4: Simplify right side
    10,620,129.72x = 54,667,407,573,474.79
  5. Step 5: Solve for x
    x = 54,667,407,573,474.79/10,620,129.72
  6. Step 6: Final answer
    x = 5,147,527.29

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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.