Finding the Fourth Proportional to 7,267,072.20, 10,900,608.30 and 4,425,721.80
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Solution
The fourth proportional to 7,267,072.20, 10,900,608.30 and 4,425,721.80 is: 6,638,582.70
Step by Step Solution
- Step 1: Write the proportion equation
7,267,072.20 : 10,900,608.30 = 4,425,721.80 : x - Step 2: Convert to fraction form
7,267,072.20/10,900,608.30 = 4,425,721.80/x - Step 3: Cross multiply
7,267,072.20x = 10,900,608.30 × 4,425,721.80 - Step 4: Simplify right side
7,267,072.20x = 48,243,059,786,570.94 - Step 5: Solve for x
x = 48,243,059,786,570.94/7,267,072.20 - Step 6: Final answer
x = 6,638,582.70
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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.