Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
0.10 = ((1 - 0.10)(1 + 0.30)(1 + 0.05)(1+r4))^1/4 - 1
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random