How to send float number to android app?

Hello,

I would like to send the value 35.1.
Unfortunately, this does not work as desired.
Also the version 0.5.2 does not work.

float results = 35.1;
Send to terminal:
Serial.println (results); OK

Send to App:
Blynk.virtualWrite (V4, “35.1”); OK
Blynk.virtualWrite (V4, results); NOK (value in the app -0.0)

What can I do?

Which hardware and software do I use:
TI Launchpad: CC3200-LAUNCHXL REV4.1
Energia: 1.6.10E18
Blynk: v0.5.4
Blynk IOS APP: 2.23.0 (4)

Regards Martin