Calculating limiting reagent

#include <iostream>

using namespace std;

int main()
{
    /*
    Litet program som kalkylerar den begränsande reaktanten av två ämnnen utifrån
    förhållandet och mängden i mol.
    */

    double ratio_component_chemical_one;
    double ratio_component_chemical_two;

    cout << "Type in the ratio between the two chemicals: ";
    cin >> ratio_component_chemical_one;
    cout << ":";
    cin >> ratio_component_chemical_two;

    //-----------------------------------------

    cout << "Now insert the amount of mole units you have of each chemical - " << endl;

    double number_of_moles_chemical_one;
    double number_of_moles_chemical_two;

    cout << "First chemical: " << endl;
    cin >> number_of_moles_chemical_one;


    cout << "Second chemical: " << endl;
    cin >> number_of_moles_chemical_two;

    //Uträkning

    double expected_ratio_component = ratio_component_chemical_two/ratio_component_chemical_one;

    if(number_of_moles_chemical_one * expected_ratio_component == number_of_moles_chemical_two)
    {
        cout << "There's no limiting chemical!" << endl;
    }
    else if(number_of_moles_chemical_one * expected_ratio_component > number_of_moles_chemical_two)
    {
        cout << "The second chemical is the limiting chemical!" << endl;
    }
    else if(number_of_moles_chemical_one * expected_ratio_component < number_of_moles_chemical_two)
    {
        cout << "The first chemical is the limiting chemical!" << endl;
    }
}