Finding the Fourth Proportional to 8,157,643.17, 12,225,441.93 and 3,106,198.05
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Solution
The fourth proportional to 8,157,643.17, 12,225,441.93 and 3,106,198.05 is: 4,655,099.90
Step by Step Solution
- Step 1: Write the proportion equation
8,157,643.17 : 12,225,441.93 = 3,106,198.05 : x - Step 2: Convert to fraction form
8,157,643.17/12,225,441.93 = 3,106,198.05/x - Step 3: Cross multiply
8,157,643.17x = 12,225,441.93 × 3,106,198.05 - Step 4: Simplify right side
8,157,643.17x = 37,974,643,883,354.23 - Step 5: Solve for x
x = 37,974,643,883,354.23/8,157,643.17 - Step 6: Final answer
x = 4,655,099.90
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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.