Home / 12,419,190,400.80-18,628,785,601.20-10,215,198,285.60

Finding the Fourth Proportional to 12,419,190,400.80, 18,628,785,601.20 and 10,215,198,285.60

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Solution

The fourth proportional to 12,419,190,400.80, 18,628,785,601.20 and 10,215,198,285.60 is: 15,322,797,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419,190,400.80 : 18,628,785,601.20 = 10,215,198,285.60 : x
  2. Step 2: Convert to fraction form
    12,419,190,400.80/18,628,785,601.20 = 10,215,198,285.60/x
  3. Step 3: Cross multiply
    12,419,190,400.80x = 18,628,785,601.20 × 10,215,198,285.60
  4. Step 4: Simplify right side
    12,419,190,400.80x = 190,296,738,736,188,227,584
  5. Step 5: Solve for x
    x = 190,296,738,736,188,227,584/12,419,190,400.80
  6. Step 6: Final answer
    x = 15,322,797,428.40

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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.