Finding the Fourth Proportional to 21,705,571.62, 32,515,791.93 and 12,588,520.84
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Solution
The fourth proportional to 21,705,571.62, 32,515,791.93 and 12,588,520.84 is: 18,858,094.66
Step by Step Solution
- Step 1: Write the proportion equation
21,705,571.62 : 32,515,791.93 = 12,588,520.84 : x - Step 2: Convert to fraction form
21,705,571.62/32,515,791.93 = 12,588,520.84/x - Step 3: Cross multiply
21,705,571.62x = 32,515,791.93 × 12,588,520.84 - Step 4: Simplify right side
21,705,571.62x = 409,325,724,258,619.38 - Step 5: Solve for x
x = 409,325,724,258,619.38/21,705,571.62 - Step 6: Final answer
x = 18,858,094.66
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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.