Finding the Fourth Proportional to 18,596,269.12, 25,638,197.68 and 15,276,091.44
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Solution
The fourth proportional to 18,596,269.12, 25,638,197.68 and 15,276,091.44 is: 21,060,754.15
Step by Step Solution
- Step 1: Write the proportion equation
18,596,269.12 : 25,638,197.68 = 15,276,091.44 : x - Step 2: Convert to fraction form
18,596,269.12/25,638,197.68 = 15,276,091.44/x - Step 3: Cross multiply
18,596,269.12x = 25,638,197.68 × 15,276,091.44 - Step 4: Simplify right side
18,596,269.12x = 391,651,452,116,475.81 - Step 5: Solve for x
x = 391,651,452,116,475.81/18,596,269.12 - Step 6: Final answer
x = 21,060,754.15
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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.