Finding the Fourth Proportional to 6,391,896.48, 8,820,764.73 and 3,491,289.18
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Solution
The fourth proportional to 6,391,896.48, 8,820,764.73 and 3,491,289.18 is: 4,817,950.44
Step by Step Solution
- Step 1: Write the proportion equation
6,391,896.48 : 8,820,764.73 = 3,491,289.18 : x - Step 2: Convert to fraction form
6,391,896.48/8,820,764.73 = 3,491,289.18/x - Step 3: Cross multiply
6,391,896.48x = 8,820,764.73 × 3,491,289.18 - Step 4: Simplify right side
6,391,896.48x = 30,795,840,461,174.62 - Step 5: Solve for x
x = 30,795,840,461,174.62/6,391,896.48 - Step 6: Final answer
x = 4,817,950.44
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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.