Finding the Fourth Proportional to 5,387,013.91, 7,434,236.94 and 2,939,782.65
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Solution
The fourth proportional to 5,387,013.91, 7,434,236.94 and 2,939,782.65 is: 4,056,986.14
Step by Step Solution
- Step 1: Write the proportion equation
5,387,013.91 : 7,434,236.94 = 2,939,782.65 : x - Step 2: Convert to fraction form
5,387,013.91/7,434,236.94 = 2,939,782.65/x - Step 3: Cross multiply
5,387,013.91x = 7,434,236.94 × 2,939,782.65 - Step 4: Simplify right side
5,387,013.91x = 21,855,040,757,502.18 - Step 5: Solve for x
x = 21,855,040,757,502.18/5,387,013.91 - Step 6: Final answer
x = 4,056,986.14
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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.