Home / 21,008,743.14-28,992,007.28-11,716,321.94

Finding the Fourth Proportional to 21,008,743.14, 28,992,007.28 and 11,716,321.94

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Solution

The fourth proportional to 21,008,743.14, 28,992,007.28 and 11,716,321.94 is: 16,168,491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,743.14 : 28,992,007.28 = 11,716,321.94 : x
  2. Step 2: Convert to fraction form
    21,008,743.14/28,992,007.28 = 11,716,321.94/x
  3. Step 3: Cross multiply
    21,008,743.14x = 28,992,007.28 × 11,716,321.94
  4. Step 4: Simplify right side
    21,008,743.14x = 339,679,690,775,762.06
  5. Step 5: Solve for x
    x = 339,679,690,775,762.06/21,008,743.14
  6. Step 6: Final answer
    x = 16,168,491.78

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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.