Finding the Fourth Proportional to 19,171,662.40, 28,743,496.80 and 7,806,260.80
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Solution
The fourth proportional to 19,171,662.40, 28,743,496.80 and 7,806,260.80 is: 11,703,692.02
Step by Step Solution
- Step 1: Write the proportion equation
19,171,662.40 : 28,743,496.80 = 7,806,260.80 : x - Step 2: Convert to fraction form
19,171,662.40/28,743,496.80 = 7,806,260.80/x - Step 3: Cross multiply
19,171,662.40x = 28,743,496.80 × 7,806,260.80 - Step 4: Simplify right side
19,171,662.40x = 224,379,232,324,765.44 - Step 5: Solve for x
x = 224,379,232,324,765.44/19,171,662.40 - Step 6: Final answer
x = 11,703,692.02
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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.