Finding the Fourth Proportional to 13,299,740.22, 18,353,274.92 and 7,498,471.62
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Solution
The fourth proportional to 13,299,740.22, 18,353,274.92 and 7,498,471.62 is: 10,347,684.15
Step by Step Solution
- Step 1: Write the proportion equation
13,299,740.22 : 18,353,274.92 = 7,498,471.62 : x - Step 2: Convert to fraction form
13,299,740.22/18,353,274.92 = 7,498,471.62/x - Step 3: Cross multiply
13,299,740.22x = 18,353,274.92 × 7,498,471.62 - Step 4: Simplify right side
13,299,740.22x = 137,621,511,121,677.78 - Step 5: Solve for x
x = 137,621,511,121,677.78/13,299,740.22 - Step 6: Final answer
x = 10,347,684.15
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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.