Finding the Fourth Proportional to 7,940,192.16, 11,909,161.02 and 2,548,143.66
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Solution
The fourth proportional to 7,940,192.16, 11,909,161.02 and 2,548,143.66 is: 3,821,853.75
Step by Step Solution
- Step 1: Write the proportion equation
7,940,192.16 : 11,909,161.02 = 2,548,143.66 : x - Step 2: Convert to fraction form
7,940,192.16/11,909,161.02 = 2,548,143.66/x - Step 3: Cross multiply
7,940,192.16x = 11,909,161.02 × 2,548,143.66 - Step 4: Simplify right side
7,940,192.16x = 30,346,253,149,032.13 - Step 5: Solve for x
x = 30,346,253,149,032.13/7,940,192.16 - Step 6: Final answer
x = 3,821,853.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.