Finding the Fourth Proportional to 18,121,763.72, 27,182,617.74 and 12,424,716.68
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Solution
The fourth proportional to 18,121,763.72, 27,182,617.74 and 12,424,716.68 is: 18,637,055.93
Step by Step Solution
- Step 1: Write the proportion equation
18,121,763.72 : 27,182,617.74 = 12,424,716.68 : x - Step 2: Convert to fraction form
18,121,763.72/27,182,617.74 = 12,424,716.68/x - Step 3: Cross multiply
18,121,763.72x = 27,182,617.74 × 12,424,716.68 - Step 4: Simplify right side
18,121,763.72x = 337,736,324,040,241.88 - Step 5: Solve for x
x = 337,736,324,040,241.88/18,121,763.72 - Step 6: Final answer
x = 18,637,055.93
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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.