Finding the Fourth Proportional to 28,377,445.61, 39,160,874.54 and 15,324,704.14
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Solution
The fourth proportional to 28,377,445.61, 39,160,874.54 and 15,324,704.14 is: 21,148,091.50
Step by Step Solution
- Step 1: Write the proportion equation
28,377,445.61 : 39,160,874.54 = 15,324,704.14 : x - Step 2: Convert to fraction form
28,377,445.61/39,160,874.54 = 15,324,704.14/x - Step 3: Cross multiply
28,377,445.61x = 39,160,874.54 × 15,324,704.14 - Step 4: Simplify right side
28,377,445.61x = 600,128,816,189,158.62 - Step 5: Solve for x
x = 600,128,816,189,158.62/28,377,445.61 - Step 6: Final answer
x = 21,148,091.50
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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.