Finding the Fourth Proportional to 7,193,830.40, 10,790,745.60 and 6,228,051.20
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Solution
The fourth proportional to 7,193,830.40, 10,790,745.60 and 6,228,051.20 is: 9,342,076.80
Step by Step Solution
- Step 1: Write the proportion equation
7,193,830.40 : 10,790,745.60 = 6,228,051.20 : x - Step 2: Convert to fraction form
7,193,830.40/10,790,745.60 = 6,228,051.20/x - Step 3: Cross multiply
7,193,830.40x = 10,790,745.60 × 6,228,051.20 - Step 4: Simplify right side
7,193,830.40x = 67,205,316,082,974.72 - Step 5: Solve for x
x = 67,205,316,082,974.72/7,193,830.40 - Step 6: Final answer
x = 9,342,076.80
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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.