Home / 13,020,304,850.70-19,530,457,276.05-12,928,471,845.90

Finding the Fourth Proportional to 13,020,304,850.70, 19,530,457,276.05 and 12,928,471,845.90

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Solution

The fourth proportional to 13,020,304,850.70, 19,530,457,276.05 and 12,928,471,845.90 is: 19,392,707,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020,304,850.70 : 19,530,457,276.05 = 12,928,471,845.90 : x
  2. Step 2: Convert to fraction form
    13,020,304,850.70/19,530,457,276.05 = 12,928,471,845.90/x
  3. Step 3: Cross multiply
    13,020,304,850.70x = 19,530,457,276.05 × 12,928,471,845.90
  4. Step 4: Simplify right side
    13,020,304,850.70x = 252,498,967,030,965,207,040
  5. Step 5: Solve for x
    x = 252,498,967,030,965,207,040/13,020,304,850.70
  6. Step 6: Final answer
    x = 19,392,707,768.85

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Double scale
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Similar ratio
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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.