Finding the Fourth Proportional to 13,408,474.49, 18,504,304.10 and 7,902,081.74
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Solution
The fourth proportional to 13,408,474.49, 18,504,304.10 and 7,902,081.74 is: 10,905,231.88
Step by Step Solution
- Step 1: Write the proportion equation
13,408,474.49 : 18,504,304.10 = 7,902,081.74 : x - Step 2: Convert to fraction form
13,408,474.49/18,504,304.10 = 7,902,081.74/x - Step 3: Cross multiply
13,408,474.49x = 18,504,304.10 × 7,902,081.74 - Step 4: Simplify right side
13,408,474.49x = 146,222,523,407,985.19 - Step 5: Solve for x
x = 146,222,523,407,985.19/13,408,474.49 - Step 6: Final answer
x = 10,905,231.88
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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.