Home / 12,886,806.38-17,783,314.53-7,085,242.94

Finding the Fourth Proportional to 12,886,806.38, 17,783,314.53 and 7,085,242.94

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Solution

The fourth proportional to 12,886,806.38, 17,783,314.53 and 7,085,242.94 is: 9,777,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,806.38 : 17,783,314.53 = 7,085,242.94 : x
  2. Step 2: Convert to fraction form
    12,886,806.38/17,783,314.53 = 7,085,242.94/x
  3. Step 3: Cross multiply
    12,886,806.38x = 17,783,314.53 × 7,085,242.94
  4. Step 4: Simplify right side
    12,886,806.38x = 125,999,103,723,481.94
  5. Step 5: Solve for x
    x = 125,999,103,723,481.94/12,886,806.38
  6. Step 6: Final answer
    x = 9,777,372.30

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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.