如果a/b=c/d=…=m/n(b+d+…+n≠0),那么a+c+…+m/b+d+…+n=a/b=…=m/n.这就是我们熟知的等比性质,它在数学解题中有着广泛的应用.证明该性质所采用的等值设参法,也是一种重要的解题思想.在应用等比性质解题时,要注意性质成立的条件和性质的灵活运用. If a/b=c/d=...=m/n(b+d+...+n≠0) then a+c+...+m/b+d+...+n=a/b=...=m/n. This is the analogous property we are familiar with. It has a wide range of applications in mathematical problem solving. Proving that the property is used in the equivalence setting method is also an important problem-solving idea. When applying the problem of analogy properties, Pay attention to the flexible use of the conditions and nature of the establishment of the nature.