Finding the Fourth Proportional to 18,809,951.10, 28,214,926.65 and 15,940,169.70
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Solution
The fourth proportional to 18,809,951.10, 28,214,926.65 and 15,940,169.70 is: 23,910,254.55
Step by Step Solution
- Step 1: Write the proportion equation
18,809,951.10 : 28,214,926.65 = 15,940,169.70 : x - Step 2: Convert to fraction form
18,809,951.10/28,214,926.65 = 15,940,169.70/x - Step 3: Cross multiply
18,809,951.10x = 28,214,926.65 × 15,940,169.70 - Step 4: Simplify right side
18,809,951.10x = 449,750,718,874,052.44 - Step 5: Solve for x
x = 449,750,718,874,052.44/18,809,951.10 - Step 6: Final answer
x = 23,910,254.55
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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.