Finding the Fourth Proportional to 8,157,643.29, 12,225,442.12 and 3,106,198.17
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Solution
The fourth proportional to 8,157,643.29, 12,225,442.12 and 3,106,198.17 is: 4,655,100.08
Step by Step Solution
- Step 1: Write the proportion equation
8,157,643.29 : 12,225,442.12 = 3,106,198.17 : x - Step 2: Convert to fraction form
8,157,643.29/12,225,442.12 = 3,106,198.17/x - Step 3: Cross multiply
8,157,643.29x = 12,225,442.12 × 3,106,198.17 - Step 4: Simplify right side
8,157,643.29x = 37,974,645,932,819.42 - Step 5: Solve for x
x = 37,974,645,932,819.42/8,157,643.29 - Step 6: Final answer
x = 4,655,100.08
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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.