Home / 18,463,921.40-25,483,732.38-12,173,403.75

Finding the Fourth Proportional to 18,463,921.40, 25,483,732.38 and 12,173,403.75

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Solution

The fourth proportional to 18,463,921.40, 25,483,732.38 and 12,173,403.75 is: 16,801,618.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,463,921.40 : 25,483,732.38 = 12,173,403.75 : x
  2. Step 2: Convert to fraction form
    18,463,921.40/25,483,732.38 = 12,173,403.75/x
  3. Step 3: Cross multiply
    18,463,921.40x = 25,483,732.38 × 12,173,403.75
  4. Step 4: Simplify right side
    18,463,921.40x = 310,223,763,318,688.44
  5. Step 5: Solve for x
    x = 310,223,763,318,688.44/18,463,921.40
  6. Step 6: Final answer
    x = 16,801,618.50

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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.