Finding the Fourth Proportional to 3,834,218.92, 5,291,185.62 and 2,115,353.32
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Solution
The fourth proportional to 3,834,218.92, 5,291,185.62 and 2,115,353.32 is: 2,919,167.45
Step by Step Solution
- Step 1: Write the proportion equation
3,834,218.92 : 5,291,185.62 = 2,115,353.32 : x - Step 2: Convert to fraction form
3,834,218.92/5,291,185.62 = 2,115,353.32/x - Step 3: Cross multiply
3,834,218.92x = 5,291,185.62 × 2,115,353.32 - Step 4: Simplify right side
3,834,218.92x = 11,192,727,068,003.26 - Step 5: Solve for x
x = 11,192,727,068,003.26/3,834,218.92 - Step 6: Final answer
x = 2,919,167.45
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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.