Finding the Fourth Proportional to 3,612,897.73, 4,985,805.81 and 1,981,316.62
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Solution
The fourth proportional to 3,612,897.73, 4,985,805.81 and 1,981,316.62 is: 2,734,220.74
Step by Step Solution
- Step 1: Write the proportion equation
3,612,897.73 : 4,985,805.81 = 1,981,316.62 : x - Step 2: Convert to fraction form
3,612,897.73/4,985,805.81 = 1,981,316.62/x - Step 3: Cross multiply
3,612,897.73x = 4,985,805.81 × 1,981,316.62 - Step 4: Simplify right side
3,612,897.73x = 9,878,459,915,445.56 - Step 5: Solve for x
x = 9,878,459,915,445.56/3,612,897.73 - Step 6: Final answer
x = 2,734,220.74
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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.