Home / 13,564,401-18,714,243.72-8,405,880.36

Finding the Fourth Proportional to 13,564,401, 18,714,243.72 and 8,405,880.36

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Solution

The fourth proportional to 13,564,401, 18,714,243.72 and 8,405,880.36 is: 11,597,245.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564,401 : 18,714,243.72 = 8,405,880.36 : x
  2. Step 2: Convert to fraction form
    13,564,401/18,714,243.72 = 8,405,880.36/x
  3. Step 3: Cross multiply
    13,564,401x = 18,714,243.72 × 8,405,880.36
  4. Step 4: Simplify right side
    13,564,401x = 157,309,693,738,201.31
  5. Step 5: Solve for x
    x = 157,309,693,738,201.31/13,564,401
  6. Step 6: Final answer
    x = 11,597,245.89

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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.