Finding the Fourth Proportional to 5,078,728.41, 7,008,635.28 and 2,755,620.18
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Solution
The fourth proportional to 5,078,728.41, 7,008,635.28 and 2,755,620.18 is: 3,802,750.46
Step by Step Solution
- Step 1: Write the proportion equation
5,078,728.41 : 7,008,635.28 = 2,755,620.18 : x - Step 2: Convert to fraction form
5,078,728.41/7,008,635.28 = 2,755,620.18/x - Step 3: Cross multiply
5,078,728.41x = 7,008,635.28 × 2,755,620.18 - Step 4: Simplify right side
5,078,728.41x = 19,313,136,811,827.95 - Step 5: Solve for x
x = 19,313,136,811,827.95/5,078,728.41 - Step 6: Final answer
x = 3,802,750.46
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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.