Home / 21,978,770.09-30,332,518.47-12,192,369.53

Finding the Fourth Proportional to 21,978,770.09, 30,332,518.47 and 12,192,369.53

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Solution

The fourth proportional to 21,978,770.09, 30,332,518.47 and 12,192,369.53 is: 16,826,477.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,978,770.09 : 30,332,518.47 = 12,192,369.53 : x
  2. Step 2: Convert to fraction form
    21,978,770.09/30,332,518.47 = 12,192,369.53/x
  3. Step 3: Cross multiply
    21,978,770.09x = 30,332,518.47 × 12,192,369.53
  4. Step 4: Simplify right side
    21,978,770.09x = 369,825,273,810,127.62
  5. Step 5: Solve for x
    x = 369,825,273,810,127.62/21,978,770.09
  6. Step 6: Final answer
    x = 16,826,477.20

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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.