Finding the Fourth Proportional to 3,983,916.06, 5,497,821.54 and 2,173,118.94
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Solution
The fourth proportional to 3,983,916.06, 5,497,821.54 and 2,173,118.94 is: 2,998,913.62
Step by Step Solution
- Step 1: Write the proportion equation
3,983,916.06 : 5,497,821.54 = 2,173,118.94 : x - Step 2: Convert to fraction form
3,983,916.06/5,497,821.54 = 2,173,118.94/x - Step 3: Cross multiply
3,983,916.06x = 5,497,821.54 × 2,173,118.94 - Step 4: Simplify right side
3,983,916.06x = 11,947,420,117,313.97 - Step 5: Solve for x
x = 11,947,420,117,313.97/3,983,916.06 - Step 6: Final answer
x = 2,998,913.62
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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.