Home / 12,048,105.40-16,640,074.72-8,121,088.56

Finding the Fourth Proportional to 12,048,105.40, 16,640,074.72 and 8,121,088.56

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Solution

The fourth proportional to 12,048,105.40, 16,640,074.72 and 8,121,088.56 is: 11,216,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,048,105.40 : 16,640,074.72 = 8,121,088.56 : x
  2. Step 2: Convert to fraction form
    12,048,105.40/16,640,074.72 = 8,121,088.56/x
  3. Step 3: Cross multiply
    12,048,105.40x = 16,640,074.72 × 8,121,088.56
  4. Step 4: Simplify right side
    12,048,105.40x = 135,135,520,446,137.20
  5. Step 5: Solve for x
    x = 135,135,520,446,137.20/12,048,105.40
  6. Step 6: Final answer
    x = 11,216,329.54

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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.