Home / 20,649,007.70-30,945,610.10-7,862,537.24

Finding the Fourth Proportional to 20,649,007.70, 30,945,610.10 and 7,862,537.24

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Solution

The fourth proportional to 20,649,007.70, 30,945,610.10 and 7,862,537.24 is: 11,783,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649,007.70 : 30,945,610.10 = 7,862,537.24 : x
  2. Step 2: Convert to fraction form
    20,649,007.70/30,945,610.10 = 7,862,537.24/x
  3. Step 3: Cross multiply
    20,649,007.70x = 30,945,610.10 × 7,862,537.24
  4. Step 4: Simplify right side
    20,649,007.70x = 243,311,011,806,744.44
  5. Step 5: Solve for x
    x = 243,311,011,806,744.44/20,649,007.70
  6. Step 6: Final answer
    x = 11,783,181.80

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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.