Finding the Fourth Proportional to 3,165,511.20, 4,368,486.80 and 1,942,492.48
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Solution
The fourth proportional to 3,165,511.20, 4,368,486.80 and 1,942,492.48 is: 2,680,689.54
Step by Step Solution
- Step 1: Write the proportion equation
3,165,511.20 : 4,368,486.80 = 1,942,492.48 : x - Step 2: Convert to fraction form
3,165,511.20/4,368,486.80 = 1,942,492.48/x - Step 3: Cross multiply
3,165,511.20x = 4,368,486.80 × 1,942,492.48 - Step 4: Simplify right side
3,165,511.20x = 8,485,752,757,979.26 - Step 5: Solve for x
x = 8,485,752,757,979.26/3,165,511.20 - Step 6: Final answer
x = 2,680,689.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.