Home / 21,978,777.09-30,332,528.13-12,192,376.53

Finding the Fourth Proportional to 21,978,777.09, 30,332,528.13 and 12,192,376.53

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Solution

The fourth proportional to 21,978,777.09, 30,332,528.13 and 12,192,376.53 is: 16,826,486.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,978,777.09 : 30,332,528.13 = 12,192,376.53 : x
  2. Step 2: Convert to fraction form
    21,978,777.09/30,332,528.13 = 12,192,376.53/x
  3. Step 3: Cross multiply
    21,978,777.09x = 30,332,528.13 × 12,192,376.53
  4. Step 4: Simplify right side
    21,978,777.09x = 369,825,604,067,776.75
  5. Step 5: Solve for x
    x = 369,825,604,067,776.75/21,978,777.09
  6. Step 6: Final answer
    x = 16,826,486.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.