Home / 20,324,871,611.70-28,049,079,786.84-12,187,999,785.82

Finding the Fourth Proportional to 20,324,871,611.70, 28,049,079,786.84 and 12,187,999,785.82

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Solution

The fourth proportional to 20,324,871,611.70, 28,049,079,786.84 and 12,187,999,785.82 is: 16,819,893,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324,871,611.70 : 28,049,079,786.84 = 12,187,999,785.82 : x
  2. Step 2: Convert to fraction form
    20,324,871,611.70/28,049,079,786.84 = 12,187,999,785.82/x
  3. Step 3: Cross multiply
    20,324,871,611.70x = 28,049,079,786.84 × 12,187,999,785.82
  4. Step 4: Simplify right side
    20,324,871,611.70x = 341,862,178,434,453,995,520
  5. Step 5: Solve for x
    x = 341,862,178,434,453,995,520/20,324,871,611.70
  6. Step 6: Final answer
    x = 16,819,893,624.21

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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.