Home / 9,145,746.05-12,620,220.19-5,279,512.77

Finding the Fourth Proportional to 9,145,746.05, 12,620,220.19 and 5,279,512.77

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Solution

The fourth proportional to 9,145,746.05, 12,620,220.19 and 5,279,512.77 is: 7,285,202.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,145,746.05 : 12,620,220.19 = 5,279,512.77 : x
  2. Step 2: Convert to fraction form
    9,145,746.05/12,620,220.19 = 5,279,512.77/x
  3. Step 3: Cross multiply
    9,145,746.05x = 12,620,220.19 × 5,279,512.77
  4. Step 4: Simplify right side
    9,145,746.05x = 66,628,613,640,118.04
  5. Step 5: Solve for x
    x = 66,628,613,640,118.04/9,145,746.05
  6. Step 6: Final answer
    x = 7,285,202.68

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Double scale
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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.