Finding the Fourth Proportional to 3,943,657.74, 5,442,251.31 and 2,132,821.74
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Solution
The fourth proportional to 3,943,657.74, 5,442,251.31 and 2,132,821.74 is: 2,943,295.96
Step by Step Solution
- Step 1: Write the proportion equation
3,943,657.74 : 5,442,251.31 = 2,132,821.74 : x - Step 2: Convert to fraction form
3,943,657.74/5,442,251.31 = 2,132,821.74/x - Step 3: Cross multiply
3,943,657.74x = 5,442,251.31 × 2,132,821.74 - Step 4: Simplify right side
3,943,657.74x = 11,607,351,908,511.48 - Step 5: Solve for x
x = 11,607,351,908,511.48/3,943,657.74 - Step 6: Final answer
x = 2,943,295.96
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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.