Finding the Fourth Proportional to 12,345,668.87, 16,998,153.53 and 10,481,396.99
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Solution
The fourth proportional to 12,345,668.87, 16,998,153.53 and 10,481,396.99 is: 14,431,327.88
Step by Step Solution
- Step 1: Write the proportion equation
12,345,668.87 : 16,998,153.53 = 10,481,396.99 : x - Step 2: Convert to fraction form
12,345,668.87/16,998,153.53 = 10,481,396.99/x - Step 3: Cross multiply
12,345,668.87x = 16,998,153.53 × 10,481,396.99 - Step 4: Simplify right side
12,345,668.87x = 178,164,395,258,486.34 - Step 5: Solve for x
x = 178,164,395,258,486.34/12,345,668.87 - Step 6: Final answer
x = 14,431,327.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.