Home / 12,321,710,499.75-18,378,969,381.46-11,190,544,350.58

Finding the Fourth Proportional to 12,321,710,499.75, 18,378,969,381.46 and 11,190,544,350.58

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Solution

The fourth proportional to 12,321,710,499.75, 18,378,969,381.46 and 11,190,544,350.58 is: 16,691,730,582.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321,710,499.75 : 18,378,969,381.46 = 11,190,544,350.58 : x
  2. Step 2: Convert to fraction form
    12,321,710,499.75/18,378,969,381.46 = 11,190,544,350.58/x
  3. Step 3: Cross multiply
    12,321,710,499.75x = 18,378,969,381.46 × 11,190,544,350.58
  4. Step 4: Simplify right side
    12,321,710,499.75x = 205,670,671,981,179,994,112
  5. Step 5: Solve for x
    x = 205,670,671,981,179,994,112/12,321,710,499.75
  6. Step 6: Final answer
    x = 16,691,730,582.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.