Finding the Fourth Proportional to 3,888,879.98, 5,366,654.84 and 2,146,549.96
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Solution
The fourth proportional to 3,888,879.98, 5,366,654.84 and 2,146,549.96 is: 2,962,239.20
Step by Step Solution
- Step 1: Write the proportion equation
3,888,879.98 : 5,366,654.84 = 2,146,549.96 : x - Step 2: Convert to fraction form
3,888,879.98/5,366,654.84 = 2,146,549.96/x - Step 3: Cross multiply
3,888,879.98x = 5,366,654.84 × 2,146,549.96 - Step 4: Simplify right side
3,888,879.98x = 11,519,792,732,135.81 - Step 5: Solve for x
x = 11,519,792,732,135.81/3,888,879.98 - Step 6: Final answer
x = 2,962,239.20
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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.