Finding the Fourth Proportional to 7,424,738.70, 11,128,250.70 and 6,663,006.60
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Solution
The fourth proportional to 7,424,738.70, 11,128,250.70 and 6,663,006.60 is: 9,986,561.26
Step by Step Solution
- Step 1: Write the proportion equation
7,424,738.70 : 11,128,250.70 = 6,663,006.60 : x - Step 2: Convert to fraction form
7,424,738.70/11,128,250.70 = 6,663,006.60/x - Step 3: Cross multiply
7,424,738.70x = 11,128,250.70 × 6,663,006.60 - Step 4: Simplify right side
7,424,738.70x = 74,147,607,860,554.61 - Step 5: Solve for x
x = 74,147,607,860,554.61/7,424,738.70 - Step 6: Final answer
x = 9,986,561.26
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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.