Finding the Fourth Proportional to 8,311,153.84, 12,474,394.24 and 4,215,349.50
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Solution
The fourth proportional to 8,311,153.84, 12,474,394.24 and 4,215,349.50 is: 6,326,911.11
Step by Step Solution
- Step 1: Write the proportion equation
8,311,153.84 : 12,474,394.24 = 4,215,349.50 : x - Step 2: Convert to fraction form
8,311,153.84/12,474,394.24 = 4,215,349.50/x - Step 3: Cross multiply
8,311,153.84x = 12,474,394.24 × 4,215,349.50 - Step 4: Simplify right side
8,311,153.84x = 52,583,931,554,999.55 - Step 5: Solve for x
x = 52,583,931,554,999.55/8,311,153.84 - Step 6: Final answer
x = 6,326,911.11
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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.