Finding the Fourth Proportional to 6,420,172.20, 9,630,695.70 and 2,042,964.60
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Solution
The fourth proportional to 6,420,172.20, 9,630,695.70 and 2,042,964.60 is: 3,064,586.09
Step by Step Solution
- Step 1: Write the proportion equation
6,420,172.20 : 9,630,695.70 = 2,042,964.60 : x - Step 2: Convert to fraction form
6,420,172.20/9,630,695.70 = 2,042,964.60/x - Step 3: Cross multiply
6,420,172.20x = 9,630,695.70 × 2,042,964.60 - Step 4: Simplify right side
6,420,172.20x = 19,675,170,388,472.22 - Step 5: Solve for x
x = 19,675,170,388,472.22/6,420,172.20 - Step 6: Final answer
x = 3,064,586.09
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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.