Finding the Fourth Proportional to 8,311,151.62, 12,474,390.93 and 4,215,347.30
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Solution
The fourth proportional to 8,311,151.62, 12,474,390.93 and 4,215,347.30 is: 6,326,907.81
Step by Step Solution
- Step 1: Write the proportion equation
8,311,151.62 : 12,474,390.93 = 4,215,347.30 : x - Step 2: Convert to fraction form
8,311,151.62/12,474,390.93 = 4,215,347.30/x - Step 3: Cross multiply
8,311,151.62x = 12,474,390.93 × 4,215,347.30 - Step 4: Simplify right side
8,311,151.62x = 52,583,890,125,919.98 - Step 5: Solve for x
x = 52,583,890,125,919.98/8,311,151.62 - Step 6: Final answer
x = 6,326,907.81
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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.