Finding the Fourth Proportional to 5,305,843.47, 7,321,660.74 and 2,982,366.81
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Solution
The fourth proportional to 5,305,843.47, 7,321,660.74 and 2,982,366.81 is: 4,115,439.53
Step by Step Solution
- Step 1: Write the proportion equation
5,305,843.47 : 7,321,660.74 = 2,982,366.81 : x - Step 2: Convert to fraction form
5,305,843.47/7,321,660.74 = 2,982,366.81/x - Step 3: Cross multiply
5,305,843.47x = 7,321,660.74 × 2,982,366.81 - Step 4: Simplify right side
5,305,843.47x = 21,835,877,985,056.04 - Step 5: Solve for x
x = 21,835,877,985,056.04/5,305,843.47 - Step 6: Final answer
x = 4,115,439.53
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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.