Finding the Fourth Proportional to 18,651,840, 27,959,082.24 and 7,276,638.72
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Solution
The fourth proportional to 18,651,840, 27,959,082.24 and 7,276,638.72 is: 10,907,671.33
Step by Step Solution
- Step 1: Write the proportion equation
18,651,840 : 27,959,082.24 = 7,276,638.72 : x - Step 2: Convert to fraction form
18,651,840/27,959,082.24 = 7,276,638.72/x - Step 3: Cross multiply
18,651,840x = 27,959,082.24 × 7,276,638.72 - Step 4: Simplify right side
18,651,840x = 203,448,140,403,248.31 - Step 5: Solve for x
x = 203,448,140,403,248.31/18,651,840 - Step 6: Final answer
x = 10,907,671.33
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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.