Finding the Fourth Proportional to 15,517,761.87, 21,414,503.88 and 8,995,171.26
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Solution
The fourth proportional to 15,517,761.87, 21,414,503.88 and 8,995,171.26 is: 12,413,331.99
Step by Step Solution
- Step 1: Write the proportion equation
15,517,761.87 : 21,414,503.88 = 8,995,171.26 : x - Step 2: Convert to fraction form
15,517,761.87/21,414,503.88 = 8,995,171.26/x - Step 3: Cross multiply
15,517,761.87x = 21,414,503.88 × 8,995,171.26 - Step 4: Simplify right side
15,517,761.87x = 192,627,129,848,534.47 - Step 5: Solve for x
x = 192,627,129,848,534.47/15,517,761.87 - Step 6: Final answer
x = 12,413,331.99
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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.