Home / 8,179,395,506.40-12,269,093,259.60-7,169,232,453.60

Finding the Fourth Proportional to 8,179,395,506.40, 12,269,093,259.60 and 7,169,232,453.60

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Solution

The fourth proportional to 8,179,395,506.40, 12,269,093,259.60 and 7,169,232,453.60 is: 10,753,848,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179,395,506.40 : 12,269,093,259.60 = 7,169,232,453.60 : x
  2. Step 2: Convert to fraction form
    8,179,395,506.40/12,269,093,259.60 = 7,169,232,453.60/x
  3. Step 3: Cross multiply
    8,179,395,506.40x = 12,269,093,259.60 × 7,169,232,453.60
  4. Step 4: Simplify right side
    8,179,395,506.40x = 87,959,981,572,969,332,736
  5. Step 5: Solve for x
    x = 87,959,981,572,969,332,736/8,179,395,506.40
  6. Step 6: Final answer
    x = 10,753,848,680.40

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Double scale
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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.