Finding the Fourth Proportional to 18,906,398.96, 28,361,362.60 and 14,651,342.60
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Solution
The fourth proportional to 18,906,398.96, 28,361,362.60 and 14,651,342.60 is: 21,978,381.02
Step by Step Solution
- Step 1: Write the proportion equation
18,906,398.96 : 28,361,362.60 = 14,651,342.60 : x - Step 2: Convert to fraction form
18,906,398.96/28,361,362.60 = 14,651,342.60/x - Step 3: Cross multiply
18,906,398.96x = 28,361,362.60 × 14,651,342.60 - Step 4: Simplify right side
18,906,398.96x = 415,532,040,055,426.75 - Step 5: Solve for x
x = 415,532,040,055,426.75/18,906,398.96 - Step 6: Final answer
x = 21,978,381.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.