Finding the Fourth Proportional to 21,110,578.96, 29,135,343.04 and 11,821,685.76
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Solution
The fourth proportional to 21,110,578.96, 29,135,343.04 and 11,821,685.76 is: 16,315,463.00
Step by Step Solution
- Step 1: Write the proportion equation
21,110,578.96 : 29,135,343.04 = 11,821,685.76 : x - Step 2: Convert to fraction form
21,110,578.96/29,135,343.04 = 11,821,685.76/x - Step 3: Cross multiply
21,110,578.96x = 29,135,343.04 × 11,821,685.76 - Step 4: Simplify right side
21,110,578.96x = 344,428,869,928,683.06 - Step 5: Solve for x
x = 344,428,869,928,683.06/21,110,578.96 - Step 6: Final answer
x = 16,315,463.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.