Home / 13,168,147.20-19,738,326-7,101,227.76

Finding the Fourth Proportional to 13,168,147.20, 19,738,326 and 7,101,227.76

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Solution

The fourth proportional to 13,168,147.20, 19,738,326 and 7,101,227.76 is: 10,644,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168,147.20 : 19,738,326 = 7,101,227.76 : x
  2. Step 2: Convert to fraction form
    13,168,147.20/19,738,326 = 7,101,227.76/x
  3. Step 3: Cross multiply
    13,168,147.20x = 19,738,326 × 7,101,227.76
  4. Step 4: Simplify right side
    13,168,147.20x = 140,166,348,527,129.75
  5. Step 5: Solve for x
    x = 140,166,348,527,129.75/13,168,147.20
  6. Step 6: Final answer
    x = 10,644,348.55

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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.