Finding the Fourth Proportional to 20,704,650.63, 28,571,117.97 and 11,411,709.31
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Solution
The fourth proportional to 20,704,650.63, 28,571,117.97 and 11,411,709.31 is: 15,747,442.39
Step by Step Solution
- Step 1: Write the proportion equation
20,704,650.63 : 28,571,117.97 = 11,411,709.31 : x - Step 2: Convert to fraction form
20,704,650.63/28,571,117.97 = 11,411,709.31/x - Step 3: Cross multiply
20,704,650.63x = 28,571,117.97 × 11,411,709.31 - Step 4: Simplify right side
20,704,650.63x = 326,045,292,935,357.31 - Step 5: Solve for x
x = 326,045,292,935,357.31/20,704,650.63 - Step 6: Final answer
x = 15,747,442.39
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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.