Finding the Fourth Proportional to 4,001,182.76, 5,521,631.79 and 2,165,640.74
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Solution
The fourth proportional to 4,001,182.76, 5,521,631.79 and 2,165,640.74 is: 2,988,583.99
Step by Step Solution
- Step 1: Write the proportion equation
4,001,182.76 : 5,521,631.79 = 2,165,640.74 : x - Step 2: Convert to fraction form
4,001,182.76/5,521,631.79 = 2,165,640.74/x - Step 3: Cross multiply
4,001,182.76x = 5,521,631.79 × 2,165,640.74 - Step 4: Simplify right side
4,001,182.76x = 11,957,870,755,703.12 - Step 5: Solve for x
x = 11,957,870,755,703.12/4,001,182.76 - Step 6: Final answer
x = 2,988,583.99
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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.