Home / 7,472,253.78-10,289,997.81-6,491,745.54

Finding the Fourth Proportional to 7,472,253.78, 10,289,997.81 and 6,491,745.54

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Solution

The fourth proportional to 7,472,253.78, 10,289,997.81 and 6,491,745.54 is: 8,939,745.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472,253.78 : 10,289,997.81 = 6,491,745.54 : x
  2. Step 2: Convert to fraction form
    7,472,253.78/10,289,997.81 = 6,491,745.54/x
  3. Step 3: Cross multiply
    7,472,253.78x = 10,289,997.81 × 6,491,745.54
  4. Step 4: Simplify right side
    7,472,253.78x = 66,800,047,389,677.27
  5. Step 5: Solve for x
    x = 66,800,047,389,677.27/7,472,253.78
  6. Step 6: Final answer
    x = 8,939,745.54

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.