Finding the Fourth Proportional to 3,931,566.09, 5,424,663.64 and 2,212,059.21
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Solution
The fourth proportional to 3,931,566.09, 5,424,663.64 and 2,212,059.21 is: 3,052,136.70
Step by Step Solution
- Step 1: Write the proportion equation
3,931,566.09 : 5,424,663.64 = 2,212,059.21 : x - Step 2: Convert to fraction form
3,931,566.09/5,424,663.64 = 2,212,059.21/x - Step 3: Cross multiply
3,931,566.09x = 5,424,663.64 × 2,212,059.21 - Step 4: Simplify right side
3,931,566.09x = 11,999,677,166,014.12 - Step 5: Solve for x
x = 11,999,677,166,014.12/3,931,566.09 - Step 6: Final answer
x = 3,052,136.70
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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.