Home / 20,774,573.80-31,161,860.70-11,816,621.80

Finding the Fourth Proportional to 20,774,573.80, 31,161,860.70 and 11,816,621.80

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Solution

The fourth proportional to 20,774,573.80, 31,161,860.70 and 11,816,621.80 is: 17,724,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774,573.80 : 31,161,860.70 = 11,816,621.80 : x
  2. Step 2: Convert to fraction form
    20,774,573.80/31,161,860.70 = 11,816,621.80/x
  3. Step 3: Cross multiply
    20,774,573.80x = 31,161,860.70 × 11,816,621.80
  4. Step 4: Simplify right side
    20,774,573.80x = 368,227,922,476,183.25
  5. Step 5: Solve for x
    x = 368,227,922,476,183.25/20,774,573.80
  6. Step 6: Final answer
    x = 17,724,932.70

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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.