Finding the Fourth Proportional to 21,335,176.44, 29,442,542.58 and 11,545,620.93
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Solution
The fourth proportional to 21,335,176.44, 29,442,542.58 and 11,545,620.93 is: 15,932,956.39
Step by Step Solution
- Step 1: Write the proportion equation
21,335,176.44 : 29,442,542.58 = 11,545,620.93 : x - Step 2: Convert to fraction form
21,335,176.44/29,442,542.58 = 11,545,620.93/x - Step 3: Cross multiply
21,335,176.44x = 29,442,542.58 × 11,545,620.93 - Step 4: Simplify right side
21,335,176.44x = 339,932,435,844,064.19 - Step 5: Solve for x
x = 339,932,435,844,064.19/21,335,176.44 - Step 6: Final answer
x = 15,932,956.39
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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.