Home / 18,372,215.60-27,558,323.40-11,989,674.80

Finding the Fourth Proportional to 18,372,215.60, 27,558,323.40 and 11,989,674.80

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Solution

The fourth proportional to 18,372,215.60, 27,558,323.40 and 11,989,674.80 is: 17,984,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372,215.60 : 27,558,323.40 = 11,989,674.80 : x
  2. Step 2: Convert to fraction form
    18,372,215.60/27,558,323.40 = 11,989,674.80/x
  3. Step 3: Cross multiply
    18,372,215.60x = 27,558,323.40 × 11,989,674.80
  4. Step 4: Simplify right side
    18,372,215.60x = 330,415,335,599,230.31
  5. Step 5: Solve for x
    x = 330,415,335,599,230.31/18,372,215.60
  6. Step 6: Final answer
    x = 17,984,512.20

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Double scale
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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.