Finding the Fourth Proportional to 12,384,586.60, 18,576,879.90 and 9,361,277.80
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Solution
The fourth proportional to 12,384,586.60, 18,576,879.90 and 9,361,277.80 is: 14,041,916.70
Step by Step Solution
- Step 1: Write the proportion equation
12,384,586.60 : 18,576,879.90 = 9,361,277.80 : x - Step 2: Convert to fraction form
12,384,586.60/18,576,879.90 = 9,361,277.80/x - Step 3: Cross multiply
12,384,586.60x = 18,576,879.90 × 9,361,277.80 - Step 4: Simplify right side
12,384,586.60x = 173,903,333,401,136.22 - Step 5: Solve for x
x = 173,903,333,401,136.22/12,384,586.60 - Step 6: Final answer
x = 14,041,916.70
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1.5x scale
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.