Home / 18,593,121.80-27,889,682.70-13,172,423.60

Finding the Fourth Proportional to 18,593,121.80, 27,889,682.70 and 13,172,423.60

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Solution

The fourth proportional to 18,593,121.80, 27,889,682.70 and 13,172,423.60 is: 19,758,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,593,121.80 : 27,889,682.70 = 13,172,423.60 : x
  2. Step 2: Convert to fraction form
    18,593,121.80/27,889,682.70 = 13,172,423.60/x
  3. Step 3: Cross multiply
    18,593,121.80x = 27,889,682.70 × 13,172,423.60
  4. Step 4: Simplify right side
    18,593,121.80x = 367,374,714,593,991.69
  5. Step 5: Solve for x
    x = 367,374,714,593,991.69/18,593,121.80
  6. Step 6: Final answer
    x = 19,758,635.40

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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.