Finding the Fourth Proportional to 55,207,424.10, 82,811,136.15 and 18,856,859.70
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Solution
The fourth proportional to 55,207,424.10, 82,811,136.15 and 18,856,859.70 is: 28,285,289.55
Step by Step Solution
- Step 1: Write the proportion equation
55,207,424.10 : 82,811,136.15 = 18,856,859.70 : x - Step 2: Convert to fraction form
55,207,424.10/82,811,136.15 = 18,856,859.70/x - Step 3: Cross multiply
55,207,424.10x = 82,811,136.15 × 18,856,859.70 - Step 4: Simplify right side
55,207,424.10x = 1,561,557,975,978,148.25 - Step 5: Solve for x
x = 1,561,557,975,978,148.25/55,207,424.10 - Step 6: Final answer
x = 28,285,289.55
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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.