Finding the Fourth Proportional to 5,101,472.88, 7,040,350.98 and 2,809,632.96
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Solution
The fourth proportional to 5,101,472.88, 7,040,350.98 and 2,809,632.96 is: 3,877,468.85
Step by Step Solution
- Step 1: Write the proportion equation
5,101,472.88 : 7,040,350.98 = 2,809,632.96 : x - Step 2: Convert to fraction form
5,101,472.88/7,040,350.98 = 2,809,632.96/x - Step 3: Cross multiply
5,101,472.88x = 7,040,350.98 × 2,809,632.96 - Step 4: Simplify right side
5,101,472.88x = 19,780,802,163,376.30 - Step 5: Solve for x
x = 19,780,802,163,376.30/5,101,472.88 - Step 6: Final answer
x = 3,877,468.85
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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.