Finding the Fourth Proportional to 3,926,067.40, 5,417,940.42 and 2,207,195.56
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Solution
The fourth proportional to 3,926,067.40, 5,417,940.42 and 2,207,195.56 is: 3,045,911.55
Step by Step Solution
- Step 1: Write the proportion equation
3,926,067.40 : 5,417,940.42 = 2,207,195.56 : x - Step 2: Convert to fraction form
3,926,067.40/5,417,940.42 = 2,207,195.56/x - Step 3: Cross multiply
3,926,067.40x = 5,417,940.42 × 2,207,195.56 - Step 4: Simplify right side
3,926,067.40x = 11,958,454,039,368.54 - Step 5: Solve for x
x = 11,958,454,039,368.54/3,926,067.40 - Step 6: Final answer
x = 3,045,911.55
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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.