Finding the Fourth Proportional to 20,757,972.30, 28,645,830.62 and 11,338,771.02
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Solution
The fourth proportional to 20,757,972.30, 28,645,830.62 and 11,338,771.02 is: 15,647,410.52
Step by Step Solution
- Step 1: Write the proportion equation
20,757,972.30 : 28,645,830.62 = 11,338,771.02 : x - Step 2: Convert to fraction form
20,757,972.30/28,645,830.62 = 11,338,771.02/x - Step 3: Cross multiply
20,757,972.30x = 28,645,830.62 × 11,338,771.02 - Step 4: Simplify right side
20,757,972.30x = 324,808,514,077,884.62 - Step 5: Solve for x
x = 324,808,514,077,884.62/20,757,972.30 - Step 6: Final answer
x = 15,647,410.52
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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.