Finding the Fourth Proportional to 3,896,600.62, 5,377,316.65 and 2,177,721.09
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Solution
The fourth proportional to 3,896,600.62, 5,377,316.65 and 2,177,721.09 is: 3,005,259.46
Step by Step Solution
- Step 1: Write the proportion equation
3,896,600.62 : 5,377,316.65 = 2,177,721.09 : x - Step 2: Convert to fraction form
3,896,600.62/5,377,316.65 = 2,177,721.09/x - Step 3: Cross multiply
3,896,600.62x = 5,377,316.65 × 2,177,721.09 - Step 4: Simplify right side
3,896,600.62x = 11,710,295,876,313.15 - Step 5: Solve for x
x = 11,710,295,876,313.15/3,896,600.62 - Step 6: Final answer
x = 3,005,259.46
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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.