Finding the Fourth Proportional to 21,665,102.51, 29,898,202.70 and 11,742,302.10
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Solution
The fourth proportional to 21,665,102.51, 29,898,202.70 and 11,742,302.10 is: 16,204,572.68
Step by Step Solution
- Step 1: Write the proportion equation
21,665,102.51 : 29,898,202.70 = 11,742,302.10 : x - Step 2: Convert to fraction form
21,665,102.51/29,898,202.70 = 11,742,302.10/x - Step 3: Cross multiply
21,665,102.51x = 29,898,202.70 × 11,742,302.10 - Step 4: Simplify right side
21,665,102.51x = 351,073,728,350,435.62 - Step 5: Solve for x
x = 351,073,728,350,435.62/21,665,102.51 - Step 6: Final answer
x = 16,204,572.68
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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.