Home / 1,212,741,606.60-1,819,112,409.90-668,546,022.60

Finding the Fourth Proportional to 1,212,741,606.60, 1,819,112,409.90 and 668,546,022.60

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Solution

The fourth proportional to 1,212,741,606.60, 1,819,112,409.90 and 668,546,022.60 is: 1,002,819,033.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,741,606.60 : 1,819,112,409.90 = 668,546,022.60 : x
  2. Step 2: Convert to fraction form
    1,212,741,606.60/1,819,112,409.90 = 668,546,022.60/x
  3. Step 3: Cross multiply
    1,212,741,606.60x = 1,819,112,409.90 × 668,546,022.60
  4. Step 4: Simplify right side
    1,212,741,606.60x = 1,216,160,366,300,945,920
  5. Step 5: Solve for x
    x = 1,216,160,366,300,945,920/1,212,741,606.60
  6. Step 6: Final answer
    x = 1,002,819,033.90

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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.