Home / 13,628,280.78-18,807,249.20-7,433,325.90

Finding the Fourth Proportional to 13,628,280.78, 18,807,249.20 and 7,433,325.90

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Solution

The fourth proportional to 13,628,280.78, 18,807,249.20 and 7,433,325.90 is: 10,258,110.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628,280.78 : 18,807,249.20 = 7,433,325.90 : x
  2. Step 2: Convert to fraction form
    13,628,280.78/18,807,249.20 = 7,433,325.90/x
  3. Step 3: Cross multiply
    13,628,280.78x = 18,807,249.20 × 7,433,325.90
  4. Step 4: Simplify right side
    13,628,280.78x = 139,800,412,586,114.28
  5. Step 5: Solve for x
    x = 139,800,412,586,114.28/13,628,280.78
  6. Step 6: Final answer
    x = 10,258,110.68

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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.