Finding the Fourth Proportional to 7,486,431.67, 10,331,306.84 and 4,048,672.70
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Solution
The fourth proportional to 7,486,431.67, 10,331,306.84 and 4,048,672.70 is: 5,587,185.17
Step by Step Solution
- Step 1: Write the proportion equation
7,486,431.67 : 10,331,306.84 = 4,048,672.70 : x - Step 2: Convert to fraction form
7,486,431.67/10,331,306.84 = 4,048,672.70/x - Step 3: Cross multiply
7,486,431.67x = 10,331,306.84 × 4,048,672.70 - Step 4: Simplify right side
7,486,431.67x = 41,828,079,963,492.11 - Step 5: Solve for x
x = 41,828,079,963,492.11/7,486,431.67 - Step 6: Final answer
x = 5,587,185.17
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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.