Finding the Fourth Proportional to 11,068,121.63, 15,274,028.79 and 6,173,660.72
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Solution
The fourth proportional to 11,068,121.63, 15,274,028.79 and 6,173,660.72 is: 8,519,663.48
Step by Step Solution
- Step 1: Write the proportion equation
11,068,121.63 : 15,274,028.79 = 6,173,660.72 : x - Step 2: Convert to fraction form
11,068,121.63/15,274,028.79 = 6,173,660.72/x - Step 3: Cross multiply
11,068,121.63x = 15,274,028.79 × 6,173,660.72 - Step 4: Simplify right side
11,068,121.63x = 94,296,671,615,157.20 - Step 5: Solve for x
x = 94,296,671,615,157.20/11,068,121.63 - Step 6: Final answer
x = 8,519,663.48
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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.