Home / 13,490,969.40-20,230,549.20-5,401,256.40

Finding the Fourth Proportional to 13,490,969.40, 20,230,549.20 and 5,401,256.40

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Solution

The fourth proportional to 13,490,969.40, 20,230,549.20 and 5,401,256.40 is: 8,099,520.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490,969.40 : 20,230,549.20 = 5,401,256.40 : x
  2. Step 2: Convert to fraction form
    13,490,969.40/20,230,549.20 = 5,401,256.40/x
  3. Step 3: Cross multiply
    13,490,969.40x = 20,230,549.20 × 5,401,256.40
  4. Step 4: Simplify right side
    13,490,969.40x = 109,270,383,342,014.89
  5. Step 5: Solve for x
    x = 109,270,383,342,014.89/13,490,969.40
  6. Step 6: Final answer
    x = 8,099,520.51

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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.