Home / 18,692,997.60-28,039,496.40-8,615,301.60

Finding the Fourth Proportional to 18,692,997.60, 28,039,496.40 and 8,615,301.60

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Solution

The fourth proportional to 18,692,997.60, 28,039,496.40 and 8,615,301.60 is: 12,922,952.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692,997.60 : 28,039,496.40 = 8,615,301.60 : x
  2. Step 2: Convert to fraction form
    18,692,997.60/28,039,496.40 = 8,615,301.60/x
  3. Step 3: Cross multiply
    18,692,997.60x = 28,039,496.40 × 8,615,301.60
  4. Step 4: Simplify right side
    18,692,997.60x = 241,568,718,198,114.22
  5. Step 5: Solve for x
    x = 241,568,718,198,114.22/18,692,997.60
  6. Step 6: Final answer
    x = 12,922,952.40

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Similar ratio
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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.