Finding the Fourth Proportional to 4,712,861.57, 6,503,349.52 and 2,647,715.15
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Solution
The fourth proportional to 4,712,861.57, 6,503,349.52 and 2,647,715.15 is: 3,653,622.50
Step by Step Solution
- Step 1: Write the proportion equation
4,712,861.57 : 6,503,349.52 = 2,647,715.15 : x - Step 2: Convert to fraction form
4,712,861.57/6,503,349.52 = 2,647,715.15/x - Step 3: Cross multiply
4,712,861.57x = 6,503,349.52 × 2,647,715.15 - Step 4: Simplify right side
4,712,861.57x = 17,219,017,049,849.23 - Step 5: Solve for x
x = 17,219,017,049,849.23/4,712,861.57 - Step 6: Final answer
x = 3,653,622.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.