Home / 12,379,414,212.70-18,569,121,319.05-8,461,206,007.90

Finding the Fourth Proportional to 12,379,414,212.70, 18,569,121,319.05 and 8,461,206,007.90

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Solution

The fourth proportional to 12,379,414,212.70, 18,569,121,319.05 and 8,461,206,007.90 is: 12,691,809,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379,414,212.70 : 18,569,121,319.05 = 8,461,206,007.90 : x
  2. Step 2: Convert to fraction form
    12,379,414,212.70/18,569,121,319.05 = 8,461,206,007.90/x
  3. Step 3: Cross multiply
    12,379,414,212.70x = 18,569,121,319.05 × 8,461,206,007.90
  4. Step 4: Simplify right side
    12,379,414,212.70x = 157,117,160,866,169,815,040
  5. Step 5: Solve for x
    x = 157,117,160,866,169,815,040/12,379,414,212.70
  6. Step 6: Final answer
    x = 12,691,809,011.85

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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.