Home / 20,649,039.24-30,945,657.33-7,862,568.78

Finding the Fourth Proportional to 20,649,039.24, 30,945,657.33 and 7,862,568.78

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Solution

The fourth proportional to 20,649,039.24, 30,945,657.33 and 7,862,568.78 is: 11,783,229.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649,039.24 : 30,945,657.33 = 7,862,568.78 : x
  2. Step 2: Convert to fraction form
    20,649,039.24/30,945,657.33 = 7,862,568.78/x
  3. Step 3: Cross multiply
    20,649,039.24x = 30,945,657.33 × 7,862,568.78
  4. Step 4: Simplify right side
    20,649,039.24x = 243,312,359,199,436.16
  5. Step 5: Solve for x
    x = 243,312,359,199,436.16/20,649,039.24
  6. Step 6: Final answer
    x = 11,783,229.06

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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.