Home / 99,496,753,315.20-149,245,129,972.80-81,830,379,016.80

Finding the Fourth Proportional to 99,496,753,315.20, 149,245,129,972.80 and 81,830,379,016.80

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Solution

The fourth proportional to 99,496,753,315.20, 149,245,129,972.80 and 81,830,379,016.80 is: 122,745,568,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,496,753,315.20 : 149,245,129,972.80 = 81,830,379,016.80 : x
  2. Step 2: Convert to fraction form
    99,496,753,315.20/149,245,129,972.80 = 81,830,379,016.80/x
  3. Step 3: Cross multiply
    99,496,753,315.20x = 149,245,129,972.80 × 81,830,379,016.80
  4. Step 4: Simplify right side
    99,496,753,315.20x = 12,212,785,552,085,802,287,104
  5. Step 5: Solve for x
    x = 12,212,785,552,085,802,287,104/99,496,753,315.20
  6. Step 6: Final answer
    x = 122,745,568,525.20

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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.