Home / 18,143,999.60-27,215,999.40-10,164,786.80

Finding the Fourth Proportional to 18,143,999.60, 27,215,999.40 and 10,164,786.80

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Solution

The fourth proportional to 18,143,999.60, 27,215,999.40 and 10,164,786.80 is: 15,247,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143,999.60 : 27,215,999.40 = 10,164,786.80 : x
  2. Step 2: Convert to fraction form
    18,143,999.60/27,215,999.40 = 10,164,786.80/x
  3. Step 3: Cross multiply
    18,143,999.60x = 27,215,999.40 × 10,164,786.80
  4. Step 4: Simplify right side
    18,143,999.60x = 276,644,831,449,927.94
  5. Step 5: Solve for x
    x = 276,644,831,449,927.94/18,143,999.60
  6. Step 6: Final answer
    x = 15,247,180.20

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1.5x scale

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.