Finding the Fourth Proportional to 7,515,542.20, 11,273,181.36 and 5,207,907.28
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Solution
The fourth proportional to 7,515,542.20, 11,273,181.36 and 5,207,907.28 is: 7,811,769.49
Step by Step Solution
- Step 1: Write the proportion equation
7,515,542.20 : 11,273,181.36 = 5,207,907.28 : x - Step 2: Convert to fraction form
7,515,542.20/11,273,181.36 = 5,207,907.28/x - Step 3: Cross multiply
7,515,542.20x = 11,273,181.36 × 5,207,907.28 - Step 4: Simplify right side
7,515,542.20x = 58,709,683,273,504.30 - Step 5: Solve for x
x = 58,709,683,273,504.30/7,515,542.20 - Step 6: Final answer
x = 7,811,769.49
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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.