| x | × | 3999 4000 | − | 113091 1000 | × | 4001 4000 | = | 1 | ÷ | 10 |
| 方程左边 = | x | × | 3999 4000 | − | 452477091 4000000 |
3999 4000 | x | − | 452477091 4000000 | = | 1 | ÷ | 10 |
| 方程右边 = | 1 10 |
3999 4000 | x | − | 452477091 4000000 | = | 1 10 |
3999 4000 | x | = | 1 10 | + | 452477091 4000000 |
3999 4000 | x | = | 452877091 4000000 |
| x | = | 452877091 4000000 | ÷ | 3999 4000 |
| = | 452877091 4000000 | × | 4000 3999 |
| = | 452877091 1000 | × | 1 3999 |
| x | = | 452877091 3999000 |
| x | = | 113.247585 |