Finding the Fourth Proportional to 14,491,969.20, 21,740,578.20 and 7,285,366.80
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Solution
The fourth proportional to 14,491,969.20, 21,740,578.20 and 7,285,366.80 is: 10,929,369.53
Step by Step Solution
- Step 1: Write the proportion equation
14,491,969.20 : 21,740,578.20 = 7,285,366.80 : x - Step 2: Convert to fraction form
14,491,969.20/21,740,578.20 = 7,285,366.80/x - Step 3: Cross multiply
14,491,969.20x = 21,740,578.20 × 7,285,366.80 - Step 4: Simplify right side
14,491,969.20x = 158,388,086,631,083.75 - Step 5: Solve for x
x = 158,388,086,631,083.75/14,491,969.20 - Step 6: Final answer
x = 10,929,369.53
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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.