Home / 28,752,262.82-39,678,171.74-15,699,243.54

Finding the Fourth Proportional to 28,752,262.82, 39,678,171.74 and 15,699,243.54

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Solution

The fourth proportional to 28,752,262.82, 39,678,171.74 and 15,699,243.54 is: 21,664,982.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752,262.82 : 39,678,171.74 = 15,699,243.54 : x
  2. Step 2: Convert to fraction form
    28,752,262.82/39,678,171.74 = 15,699,243.54/x
  3. Step 3: Cross multiply
    28,752,262.82x = 39,678,171.74 × 15,699,243.54
  4. Step 4: Simplify right side
    28,752,262.82x = 622,917,281,289,709.25
  5. Step 5: Solve for x
    x = 622,917,281,289,709.25/28,752,262.82
  6. Step 6: Final answer
    x = 21,664,982.87

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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.