Finding the Fourth Proportional to 7,561,243.20, 11,338,916.40 and 3,298,504.80
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Solution
The fourth proportional to 7,561,243.20, 11,338,916.40 and 3,298,504.80 is: 4,946,470.99
Step by Step Solution
- Step 1: Write the proportion equation
7,561,243.20 : 11,338,916.40 = 3,298,504.80 : x - Step 2: Convert to fraction form
7,561,243.20/11,338,916.40 = 3,298,504.80/x - Step 3: Cross multiply
7,561,243.20x = 11,338,916.40 × 3,298,504.80 - Step 4: Simplify right side
7,561,243.20x = 37,401,470,172,198.72 - Step 5: Solve for x
x = 37,401,470,172,198.72/7,561,243.20 - Step 6: Final answer
x = 4,946,470.99
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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.