Home / 12,379,414,216.70-18,569,121,325.05-8,461,206,011.90

Finding the Fourth Proportional to 12,379,414,216.70, 18,569,121,325.05 and 8,461,206,011.90

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Solution

The fourth proportional to 12,379,414,216.70, 18,569,121,325.05 and 8,461,206,011.90 is: 12,691,809,017.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,414,216.70 : 18,569,121,325.05 = 8,461,206,011.90 : x
  2. Step 2: Convert to fraction form
    12,379,414,216.70/18,569,121,325.05 = 8,461,206,011.90/x
  3. Step 3: Cross multiply
    12,379,414,216.70x = 18,569,121,325.05 × 8,461,206,011.90
  4. Step 4: Simplify right side
    12,379,414,216.70x = 157,117,160,991,213,551,616
  5. Step 5: Solve for x
    x = 157,117,160,991,213,551,616/12,379,414,216.70
  6. Step 6: Final answer
    x = 12,691,809,017.85

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Double scale
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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.