| 398 | ÷ | 3150 | + | x | ÷ | 2820 | + | 47 100 | x | ÷ | 2640 | = | 99 100 |
| 方程左边 = | 199 1575 | + | x | × | 1 2820 | + | 47 264000 | x |
| = | 199 1575 | + | 2203 4136000 | x |
199 1575 | + | 2203 4136000 | x | = | 99 100 |
2203 4136000 | x | = | 99 100 | − | 199 1575 |
2203 4136000 | x | = | 5441 6300 |
| x | = | 5441 6300 | ÷ | 2203 4136000 |
| = | 5441 6300 | × | 4136000 2203 |
| = | 5441 63 | × | 41360 2203 |
| x | = | 225039760 138789 |
| x | = | 1621.452421 |