Finding the Fourth Proportional to 13,505,815.44, 18,598,724.48 and 11,738,921.74
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Solution
The fourth proportional to 13,505,815.44, 18,598,724.48 and 11,738,921.74 is: 16,165,552.69
Step by Step Solution
- Step 1: Write the proportion equation
13,505,815.44 : 18,598,724.48 = 11,738,921.74 : x - Step 2: Convert to fraction form
13,505,815.44/18,598,724.48 = 11,738,921.74/x - Step 3: Cross multiply
13,505,815.44x = 18,598,724.48 × 11,738,921.74 - Step 4: Simplify right side
13,505,815.44x = 218,328,971,117,392.72 - Step 5: Solve for x
x = 218,328,971,117,392.72/13,505,815.44 - Step 6: Final answer
x = 16,165,552.69
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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.