Home / 12,131,318.16-18,188,010.54-7,337,851.56

Finding the Fourth Proportional to 12,131,318.16, 18,188,010.54 and 7,337,851.56

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Solution

The fourth proportional to 12,131,318.16, 18,188,010.54 and 7,337,851.56 is: 11,001,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,318.16 : 18,188,010.54 = 7,337,851.56 : x
  2. Step 2: Convert to fraction form
    12,131,318.16/18,188,010.54 = 7,337,851.56/x
  3. Step 3: Cross multiply
    12,131,318.16x = 18,188,010.54 × 7,337,851.56
  4. Step 4: Simplify right side
    12,131,318.16x = 133,460,921,514,235.42
  5. Step 5: Solve for x
    x = 133,460,921,514,235.42/12,131,318.16
  6. Step 6: Final answer
    x = 11,001,353.67

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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.