Finding the Fourth Proportional to 5,105,326.94, 7,045,352.46 and 2,782,220.14
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Solution
The fourth proportional to 5,105,326.94, 7,045,352.46 and 2,782,220.14 is: 3,839,464.49
Step by Step Solution
- Step 1: Write the proportion equation
5,105,326.94 : 7,045,352.46 = 2,782,220.14 : x - Step 2: Convert to fraction form
5,105,326.94/7,045,352.46 = 2,782,220.14/x - Step 3: Cross multiply
5,105,326.94x = 7,045,352.46 × 2,782,220.14 - Step 4: Simplify right side
5,105,326.94x = 19,601,721,507,610.55 - Step 5: Solve for x
x = 19,601,721,507,610.55/5,105,326.94 - Step 6: Final answer
x = 3,839,464.49
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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.