Home / 13,512,888-18,647,787.87-7,401,535.20

Finding the Fourth Proportional to 13,512,888, 18,647,787.87 and 7,401,535.20

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Solution

The fourth proportional to 13,512,888, 18,647,787.87 and 7,401,535.20 is: 10,214,119.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,512,888 : 18,647,787.87 = 7,401,535.20 : x
  2. Step 2: Convert to fraction form
    13,512,888/18,647,787.87 = 7,401,535.20/x
  3. Step 3: Cross multiply
    13,512,888x = 18,647,787.87 × 7,401,535.20
  4. Step 4: Simplify right side
    13,512,888x = 138,022,258,321,938.03
  5. Step 5: Solve for x
    x = 138,022,258,321,938.03/13,512,888
  6. Step 6: Final answer
    x = 10,214,119.91

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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.