股份比是：50:50:30:20=5:5:3:2甲：50÷150x100%≈0.3333=33.33%乙：50÷150x100%≈0.3333=33.33%丙：30÷150x100%≈0.2=20%丁：20÷150x100%≈0.1333=13.33%
