Home / 18,649,265,656.41-25,738,611,621.71-11,872,919,639.61

Finding the Fourth Proportional to 18,649,265,656.41, 25,738,611,621.71 and 11,872,919,639.61

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Solution

The fourth proportional to 18,649,265,656.41, 25,738,611,621.71 and 11,872,919,639.61 is: 16,386,300,299.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649,265,656.41 : 25,738,611,621.71 = 11,872,919,639.61 : x
  2. Step 2: Convert to fraction form
    18,649,265,656.41/25,738,611,621.71 = 11,872,919,639.61/x
  3. Step 3: Cross multiply
    18,649,265,656.41x = 25,738,611,621.71 × 11,872,919,639.61
  4. Step 4: Simplify right side
    18,649,265,656.41x = 305,592,467,419,635,515,392
  5. Step 5: Solve for x
    x = 305,592,467,419,635,515,392/18,649,265,656.41
  6. Step 6: Final answer
    x = 16,386,300,299.96

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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.