Finding the Fourth Proportional to 21,315,081.68, 29,414,791.92 and 11,525,502.44
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Solution
The fourth proportional to 21,315,081.68, 29,414,791.92 and 11,525,502.44 is: 15,905,182.12
Step by Step Solution
- Step 1: Write the proportion equation
21,315,081.68 : 29,414,791.92 = 11,525,502.44 : x - Step 2: Convert to fraction form
21,315,081.68/29,414,791.92 = 11,525,502.44/x - Step 3: Cross multiply
21,315,081.68x = 29,414,791.92 × 11,525,502.44 - Step 4: Simplify right side
21,315,081.68x = 339,020,256,046,052.31 - Step 5: Solve for x
x = 339,020,256,046,052.31/21,315,081.68 - Step 6: Final answer
x = 15,905,182.12
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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.