Finding the Fourth Proportional to 9,776,812.20, 14,672,216.70 and 5,512,453.80
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Solution
The fourth proportional to 9,776,812.20, 14,672,216.70 and 5,512,453.80 is: 8,272,626.60
Step by Step Solution
- Step 1: Write the proportion equation
9,776,812.20 : 14,672,216.70 = 5,512,453.80 : x - Step 2: Convert to fraction form
9,776,812.20/14,672,216.70 = 5,512,453.80/x - Step 3: Cross multiply
9,776,812.20x = 14,672,216.70 × 5,512,453.80 - Step 4: Simplify right side
9,776,812.20x = 80,879,916,702,338.45 - Step 5: Solve for x
x = 80,879,916,702,338.45/9,776,812.20 - Step 6: Final answer
x = 8,272,626.60
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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.