Finding the Fourth Proportional to 21,761,631.60, 32,614,453.80 and 13,232,914.80
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Solution
The fourth proportional to 21,761,631.60, 32,614,453.80 and 13,232,914.80 is: 19,832,349.72
Step by Step Solution
- Step 1: Write the proportion equation
21,761,631.60 : 32,614,453.80 = 13,232,914.80 : x - Step 2: Convert to fraction form
21,761,631.60/32,614,453.80 = 13,232,914.80/x - Step 3: Cross multiply
21,761,631.60x = 32,614,453.80 × 13,232,914.80 - Step 4: Simplify right side
21,761,631.60x = 431,584,288,383,936.25 - Step 5: Solve for x
x = 431,584,288,383,936.25/21,761,631.60 - Step 6: Final answer
x = 19,832,349.72
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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.