Finding the Fourth Proportional to 7,405,942.08, 10,197,489.81 and 6,483,006.21
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Solution
The fourth proportional to 7,405,942.08, 10,197,489.81 and 6,483,006.21 is: 8,926,668.48
Step by Step Solution
- Step 1: Write the proportion equation
7,405,942.08 : 10,197,489.81 = 6,483,006.21 : x - Step 2: Convert to fraction form
7,405,942.08/10,197,489.81 = 6,483,006.21/x - Step 3: Cross multiply
7,405,942.08x = 10,197,489.81 × 6,483,006.21 - Step 4: Simplify right side
7,405,942.08x = 66,110,389,764,641.73 - Step 5: Solve for x
x = 66,110,389,764,641.73/7,405,942.08 - Step 6: Final answer
x = 8,926,668.48
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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.