Home / 20,958,551,185.20-28,925,336,900.34-11,928,504,905.16

Finding the Fourth Proportional to 20,958,551,185.20, 28,925,336,900.34 and 11,928,504,905.16

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Solution

The fourth proportional to 20,958,551,185.20, 28,925,336,900.34 and 11,928,504,905.16 is: 16,462,780,277.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,958,551,185.20 : 28,925,336,900.34 = 11,928,504,905.16 : x
  2. Step 2: Convert to fraction form
    20,958,551,185.20/28,925,336,900.34 = 11,928,504,905.16/x
  3. Step 3: Cross multiply
    20,958,551,185.20x = 28,925,336,900.34 × 11,928,504,905.16
  4. Step 4: Simplify right side
    20,958,551,185.20x = 345,036,023,099,043,282,944
  5. Step 5: Solve for x
    x = 345,036,023,099,043,282,944/20,958,551,185.20
  6. Step 6: Final answer
    x = 16,462,780,277.61

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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.