48/1.16=√30×0.45xX bạn nào giúp mik vs mik cảm ơn

`(48)/(1,16)=√30×0.45×x`

`⇔(1200)/(20)=(9\sqrt(30))/20 .x`

`⇔1200=9\sqrt(30)x`

`⇔3\sqrt(30)x=400`

`⇔x=(400)/(\sqrt(270))`