Home / 12,886,855.38-17,783,382.15-7,085,291.94

Finding the Fourth Proportional to 12,886,855.38, 17,783,382.15 and 7,085,291.94

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Solution

The fourth proportional to 12,886,855.38, 17,783,382.15 and 7,085,291.94 is: 9,777,439.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886,855.38 : 17,783,382.15 = 7,085,291.94 : x
  2. Step 2: Convert to fraction form
    12,886,855.38/17,783,382.15 = 7,085,291.94/x
  3. Step 3: Cross multiply
    12,886,855.38x = 17,783,382.15 × 7,085,291.94
  4. Step 4: Simplify right side
    12,886,855.38x = 126,000,454,213,334.88
  5. Step 5: Solve for x
    x = 126,000,454,213,334.88/12,886,855.38
  6. Step 6: Final answer
    x = 9,777,439.92

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1.5x scale

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.