Home / 12,379,413,305.70-18,569,119,958.55-8,461,205,100.90

Finding the Fourth Proportional to 12,379,413,305.70, 18,569,119,958.55 and 8,461,205,100.90

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Solution

The fourth proportional to 12,379,413,305.70, 18,569,119,958.55 and 8,461,205,100.90 is: 12,691,807,651.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,413,305.70 : 18,569,119,958.55 = 8,461,205,100.90 : x
  2. Step 2: Convert to fraction form
    12,379,413,305.70/18,569,119,958.55 = 8,461,205,100.90/x
  3. Step 3: Cross multiply
    12,379,413,305.70x = 18,569,119,958.55 × 8,461,205,100.90
  4. Step 4: Simplify right side
    12,379,413,305.70x = 157,117,132,512,507,232,256
  5. Step 5: Solve for x
    x = 157,117,132,512,507,232,256/12,379,413,305.70
  6. Step 6: Final answer
    x = 12,691,807,651.35

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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.