Rule of Propotion

Proportions are no problem anymore. For this, only 3 of 4 variables must be entered. All calculations are stored in the history. The final solution can be shared.[ Content ]- the variables must be entered- calculation with the rule of proportion- history function that saves input- detailed solution- the entering of fractions and decimals is supported- constants can be entered- option to remove ads[ Usage ]- there are 4 fields for entering the values ​​using a modified keyboard- if you have entered wrong values or values are missing, the text fields are highlighted- you can switch between the solution, input view and history by swiping and / or touching the buttons- the entries in the history can be deleted or sorted manually- if you select an entry in the history, it will be loaded automatically for the calculation- the entire history can be deleted by pressing a key