Finding the Fourth Proportional to 13,504,729.14, 18,636,526.85 and 7,393,157.64
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Solution
The fourth proportional to 13,504,729.14, 18,636,526.85 and 7,393,157.64 is: 10,202,557.89
Step by Step Solution
- Step 1: Write the proportion equation
13,504,729.14 : 18,636,526.85 = 7,393,157.64 : x - Step 2: Convert to fraction form
13,504,729.14/18,636,526.85 = 7,393,157.64/x - Step 3: Cross multiply
13,504,729.14x = 18,636,526.85 × 7,393,157.64 - Step 4: Simplify right side
13,504,729.14x = 137,782,780,827,176.83 - Step 5: Solve for x
x = 137,782,780,827,176.83/13,504,729.14 - Step 6: Final answer
x = 10,202,557.89
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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.