Finding the Fourth Proportional to 8,157,642.79, 12,225,441.37 and 3,106,197.67
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Solution
The fourth proportional to 8,157,642.79, 12,225,441.37 and 3,106,197.67 is: 4,655,099.33
Step by Step Solution
- Step 1: Write the proportion equation
8,157,642.79 : 12,225,441.37 = 3,106,197.67 : x - Step 2: Convert to fraction form
8,157,642.79/12,225,441.37 = 3,106,197.67/x - Step 3: Cross multiply
8,157,642.79x = 12,225,441.37 × 3,106,197.67 - Step 4: Simplify right side
8,157,642.79x = 37,974,637,490,450.11 - Step 5: Solve for x
x = 37,974,637,490,450.11/8,157,642.79 - Step 6: Final answer
x = 4,655,099.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.