Finding the Fourth Proportional to 3,569,486.63, 4,921,133.96 and 2,836,887.20
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Solution
The fourth proportional to 3,569,486.63, 4,921,133.96 and 2,836,887.20 is: 3,911,123.19
Step by Step Solution
- Step 1: Write the proportion equation
3,569,486.63 : 4,921,133.96 = 2,836,887.20 : x - Step 2: Convert to fraction form
3,569,486.63/4,921,133.96 = 2,836,887.20/x - Step 3: Cross multiply
3,569,486.63x = 4,921,133.96 × 2,836,887.20 - Step 4: Simplify right side
3,569,486.63x = 13,960,701,940,609.31 - Step 5: Solve for x
x = 13,960,701,940,609.31/3,569,486.63 - Step 6: Final answer
x = 3,911,123.19
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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.