Finding the Fourth Proportional to 11,242,655.30, 16,861,458.99 and 5,171,556.26
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Solution
The fourth proportional to 11,242,655.30, 16,861,458.99 and 5,171,556.26 is: 7,756,173.38
Step by Step Solution
- Step 1: Write the proportion equation
11,242,655.30 : 16,861,458.99 = 5,171,556.26 : x - Step 2: Convert to fraction form
11,242,655.30/16,861,458.99 = 5,171,556.26/x - Step 3: Cross multiply
11,242,655.30x = 16,861,458.99 × 5,171,556.26 - Step 4: Simplify right side
11,242,655.30x = 87,199,983,792,467.77 - Step 5: Solve for x
x = 87,199,983,792,467.77/11,242,655.30 - Step 6: Final answer
x = 7,756,173.38
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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.