Finding the Fourth Proportional to 5,264,988.40, 7,881,736.20 and 3,133,975.60
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Solution
The fourth proportional to 5,264,988.40, 7,881,736.20 and 3,133,975.60 is: 4,691,590.38
Step by Step Solution
- Step 1: Write the proportion equation
5,264,988.40 : 7,881,736.20 = 3,133,975.60 : x - Step 2: Convert to fraction form
5,264,988.40/7,881,736.20 = 3,133,975.60/x - Step 3: Cross multiply
5,264,988.40x = 7,881,736.20 × 3,133,975.60 - Step 4: Simplify right side
5,264,988.40x = 24,701,168,936,436.72 - Step 5: Solve for x
x = 24,701,168,936,436.72/5,264,988.40 - Step 6: Final answer
x = 4,691,590.38
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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.