Finding the Fourth Proportional to 3,813,816, 5,261,784.56 and 2,159,737.68
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Solution
The fourth proportional to 3,813,816, 5,261,784.56 and 2,159,737.68 is: 2,979,712.28
Step by Step Solution
- Step 1: Write the proportion equation
3,813,816 : 5,261,784.56 = 2,159,737.68 : x - Step 2: Convert to fraction form
3,813,816/5,261,784.56 = 2,159,737.68/x - Step 3: Cross multiply
3,813,816x = 5,261,784.56 × 2,159,737.68 - Step 4: Simplify right side
3,813,816x = 11,364,074,378,274.22 - Step 5: Solve for x
x = 11,364,074,378,274.22/3,813,816 - Step 6: Final answer
x = 2,979,712.28
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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.