Finding the Fourth Proportional to 3,872,317.44, 5,343,388.80 and 2,153,160.48
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Solution
The fourth proportional to 3,872,317.44, 5,343,388.80 and 2,153,160.48 is: 2,971,133.89
Step by Step Solution
- Step 1: Write the proportion equation
3,872,317.44 : 5,343,388.80 = 2,153,160.48 : x - Step 2: Convert to fraction form
3,872,317.44/5,343,388.80 = 2,153,160.48/x - Step 3: Cross multiply
3,872,317.44x = 5,343,388.80 × 2,153,160.48 - Step 4: Simplify right side
3,872,317.44x = 11,505,173,593,434.62 - Step 5: Solve for x
x = 11,505,173,593,434.62/3,872,317.44 - Step 6: Final answer
x = 2,971,133.89
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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.