Finding the Fourth Proportional to 18,626,453.92, 27,939,688.63 and 8,379,344.70
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Solution
The fourth proportional to 18,626,453.92, 27,939,688.63 and 8,379,344.70 is: 12,569,020.53
Step by Step Solution
- Step 1: Write the proportion equation
18,626,453.92 : 27,939,688.63 = 8,379,344.70 : x - Step 2: Convert to fraction form
18,626,453.92/27,939,688.63 = 8,379,344.70/x - Step 3: Cross multiply
18,626,453.92x = 27,939,688.63 × 8,379,344.70 - Step 4: Simplify right side
18,626,453.92x = 234,116,281,820,492.41 - Step 5: Solve for x
x = 234,116,281,820,492.41/18,626,453.92 - Step 6: Final answer
x = 12,569,020.53
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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.