Finding the Fourth Proportional to 18,207,159.88, 27,291,662.76 and 8,483,756.44
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Solution
The fourth proportional to 18,207,159.88, 27,291,662.76 and 8,483,756.44 is: 12,716,745.57
Step by Step Solution
- Step 1: Write the proportion equation
18,207,159.88 : 27,291,662.76 = 8,483,756.44 : x - Step 2: Convert to fraction form
18,207,159.88/27,291,662.76 = 8,483,756.44/x - Step 3: Cross multiply
18,207,159.88x = 27,291,662.76 × 8,483,756.44 - Step 4: Simplify right side
18,207,159.88x = 231,535,819,698,458.19 - Step 5: Solve for x
x = 231,535,819,698,458.19/18,207,159.88 - Step 6: Final answer
x = 12,716,745.57
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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.