Home / 20,649,034-30,945,649.49-7,862,563.54

Finding the Fourth Proportional to 20,649,034, 30,945,649.49 and 7,862,563.54

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Solution

The fourth proportional to 20,649,034, 30,945,649.49 and 7,862,563.54 is: 11,783,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649,034 : 30,945,649.49 = 7,862,563.54 : x
  2. Step 2: Convert to fraction form
    20,649,034/30,945,649.49 = 7,862,563.54/x
  3. Step 3: Cross multiply
    20,649,034x = 30,945,649.49 × 7,862,563.54
  4. Step 4: Simplify right side
    20,649,034x = 243,312,135,401,693.59
  5. Step 5: Solve for x
    x = 243,312,135,401,693.59/20,649,034
  6. Step 6: Final answer
    x = 11,783,221.21

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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.