Home / 20,617,735.30-28,450,815.41-11,916,471.49

Finding the Fourth Proportional to 20,617,735.30, 28,450,815.41 and 11,916,471.49

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Solution

The fourth proportional to 20,617,735.30, 28,450,815.41 and 11,916,471.49 is: 16,443,771.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617,735.30 : 28,450,815.41 = 11,916,471.49 : x
  2. Step 2: Convert to fraction form
    20,617,735.30/28,450,815.41 = 11,916,471.49/x
  3. Step 3: Cross multiply
    20,617,735.30x = 28,450,815.41 × 11,916,471.49
  4. Step 4: Simplify right side
    20,617,735.30x = 339,033,330,659,181.81
  5. Step 5: Solve for x
    x = 339,033,330,659,181.81/20,617,735.30
  6. Step 6: Final answer
    x = 16,443,771.63

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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.