Finding the Fourth Proportional to 3,846,815.16, 5,308,142.38 and 2,215,752.99
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Solution
The fourth proportional to 3,846,815.16, 5,308,142.38 and 2,215,752.99 is: 3,057,472.70
Step by Step Solution
- Step 1: Write the proportion equation
3,846,815.16 : 5,308,142.38 = 2,215,752.99 : x - Step 2: Convert to fraction form
3,846,815.16/5,308,142.38 = 2,215,752.99/x - Step 3: Cross multiply
3,846,815.16x = 5,308,142.38 × 2,215,752.99 - Step 4: Simplify right side
3,846,815.16x = 11,761,532,349,830.72 - Step 5: Solve for x
x = 11,761,532,349,830.72/3,846,815.16 - Step 6: Final answer
x = 3,057,472.70
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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.