Finding the Fourth Proportional to 3,887,767.54, 5,365,121.51 and 2,168,888.05
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Solution
The fourth proportional to 3,887,767.54, 5,365,121.51 and 2,168,888.05 is: 2,993,066.79
Step by Step Solution
- Step 1: Write the proportion equation
3,887,767.54 : 5,365,121.51 = 2,168,888.05 : x - Step 2: Convert to fraction form
3,887,767.54/5,365,121.51 = 2,168,888.05/x - Step 3: Cross multiply
3,887,767.54x = 5,365,121.51 × 2,168,888.05 - Step 4: Simplify right side
3,887,767.54x = 11,636,347,929,836.95 - Step 5: Solve for x
x = 11,636,347,929,836.95/3,887,767.54 - Step 6: Final answer
x = 2,993,066.79
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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.