Finding the Fourth Proportional to 20,047,214.88, 27,665,170.92 and 10,879,857.63
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Solution
The fourth proportional to 20,047,214.88, 27,665,170.92 and 10,879,857.63 is: 15,014,211.34
Step by Step Solution
- Step 1: Write the proportion equation
20,047,214.88 : 27,665,170.92 = 10,879,857.63 : x - Step 2: Convert to fraction form
20,047,214.88/27,665,170.92 = 10,879,857.63/x - Step 3: Cross multiply
20,047,214.88x = 27,665,170.92 × 10,879,857.63 - Step 4: Simplify right side
20,047,214.88x = 300,993,120,919,216.19 - Step 5: Solve for x
x = 300,993,120,919,216.19/20,047,214.88 - Step 6: Final answer
x = 15,014,211.34
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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.