Finding the Fourth Proportional to 18,418,522.80, 27,627,806.04 and 5,638,963.26
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Solution
The fourth proportional to 18,418,522.80, 27,627,806.04 and 5,638,963.26 is: 8,458,451.58
Step by Step Solution
- Step 1: Write the proportion equation
18,418,522.80 : 27,627,806.04 = 5,638,963.26 : x - Step 2: Convert to fraction form
18,418,522.80/27,627,806.04 = 5,638,963.26/x - Step 3: Cross multiply
18,418,522.80x = 27,627,806.04 × 5,638,963.26 - Step 4: Simplify right side
18,418,522.80x = 155,792,183,213,966.09 - Step 5: Solve for x
x = 155,792,183,213,966.09/18,418,522.80 - Step 6: Final answer
x = 8,458,451.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.