Home / 22,378,790.70-30,882,685.86-12,589,241.76

Finding the Fourth Proportional to 22,378,790.70, 30,882,685.86 and 12,589,241.76

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Solution

The fourth proportional to 22,378,790.70, 30,882,685.86 and 12,589,241.76 is: 17,373,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,378,790.70 : 30,882,685.86 = 12,589,241.76 : x
  2. Step 2: Convert to fraction form
    22,378,790.70/30,882,685.86 = 12,589,241.76/x
  3. Step 3: Cross multiply
    22,378,790.70x = 30,882,685.86 × 12,589,241.76
  4. Step 4: Simplify right side
    22,378,790.70x = 388,789,598,489,673.50
  5. Step 5: Solve for x
    x = 388,789,598,489,673.50/22,378,790.70
  6. Step 6: Final answer
    x = 17,373,128.14

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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.