Finding the Fourth Proportional to 5,138,497.34, 7,090,609.52 and 2,846,229.74
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Solution
The fourth proportional to 5,138,497.34, 7,090,609.52 and 2,846,229.74 is: 3,927,510.78
Step by Step Solution
- Step 1: Write the proportion equation
5,138,497.34 : 7,090,609.52 = 2,846,229.74 : x - Step 2: Convert to fraction form
5,138,497.34/7,090,609.52 = 2,846,229.74/x - Step 3: Cross multiply
5,138,497.34x = 7,090,609.52 × 2,846,229.74 - Step 4: Simplify right side
5,138,497.34x = 20,181,503,662,213.65 - Step 5: Solve for x
x = 20,181,503,662,213.65/5,138,497.34 - Step 6: Final answer
x = 3,927,510.78
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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.