Finding the Fourth Proportional to 3,876,064.99, 5,348,969.70 and 2,157,591.47
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Solution
The fourth proportional to 3,876,064.99, 5,348,969.70 and 2,157,591.47 is: 2,977,476.24
Step by Step Solution
- Step 1: Write the proportion equation
3,876,064.99 : 5,348,969.70 = 2,157,591.47 : x - Step 2: Convert to fraction form
3,876,064.99/5,348,969.70 = 2,157,591.47/x - Step 3: Cross multiply
3,876,064.99x = 5,348,969.70 × 2,157,591.47 - Step 4: Simplify right side
3,876,064.99x = 11,540,891,398,008.46 - Step 5: Solve for x
x = 11,540,891,398,008.46/3,876,064.99 - Step 6: Final answer
x = 2,977,476.24
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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.