5 sentences

1. 他的收入是我的三倍。

   tā de shōu​rù shì wǒ de sān bèi.

   His income is three times mine.

   Source: Dong Chinese Dictionary

2. 他的块头是你的三倍。

   tā de kuài​tóu shì nǐ de sān bèi.

   He's three times your size.

   Source: OpenSubtitles

3. 我的房间是你的三倍大。

   wǒ de fáng​jiān shì nǐ de sān bèi dà.

   My room is three times as large as yours.

   Source: Tatoeba

4. 她所属的电视台会付我三倍价钱。

   tā suǒ​shǔ de diàn​shì​tái huì fù wǒ sān bèi jià​qian.

   Her network will pay me triple.

   Source: OpenSubtitles

5. 我想把区域直径扩大到现有的三倍。

   wǒ xiǎng bǎ qū​yù zhí​jìng kuò​dà dào xiàn​yǒu de sān bèi.

   I want to triple the diameter of the area.

   Source: OpenSubtitles