| ( | 19089 125 | × | 2483 8000 | ) | ÷ | ( | 4725939 1000000 | × | 70000 | ) | = | x |
| 方程两边同时乘以: | ( | 4725939 1000000 | × | 70000 | ) |
| ( | 19089 125 | × | 2483 8000 | ) | = | x | ( | 4725939 1000000 | × | 70000 | ) |
19089 125 | × | 2483 8000 | = | x | ( | 4725939 1000000 | × | 70000 | ) |
19089 125 | × | 2483 8000 | = | x | × | 4725939 1000000 | × | 70000 |