Finding the Fourth Proportional to 18,254,863.96, 25,190,755.05 and 9,993,343.48
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Solution
The fourth proportional to 18,254,863.96, 25,190,755.05 and 9,993,343.48 is: 13,790,289.99
Step by Step Solution
- Step 1: Write the proportion equation
18,254,863.96 : 25,190,755.05 = 9,993,343.48 : x - Step 2: Convert to fraction form
18,254,863.96/25,190,755.05 = 9,993,343.48/x - Step 3: Cross multiply
18,254,863.96x = 25,190,755.05 × 9,993,343.48 - Step 4: Simplify right side
18,254,863.96x = 251,739,867,735,194.59 - Step 5: Solve for x
x = 251,739,867,735,194.59/18,254,863.96 - Step 6: Final answer
x = 13,790,289.99
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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.