Finding the Fourth Proportional to 21,494,135.87, 29,661,124.38 and 11,704,365.30
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Solution
The fourth proportional to 21,494,135.87, 29,661,124.38 and 11,704,365.30 is: 16,151,597.68
Step by Step Solution
- Step 1: Write the proportion equation
21,494,135.87 : 29,661,124.38 = 11,704,365.30 : x - Step 2: Convert to fraction form
21,494,135.87/29,661,124.38 = 11,704,365.30/x - Step 3: Cross multiply
21,494,135.87x = 29,661,124.38 × 11,704,365.30 - Step 4: Simplify right side
21,494,135.87x = 347,164,634,952,256 - Step 5: Solve for x
x = 347,164,634,952,256/21,494,135.87 - Step 6: Final answer
x = 16,151,597.68
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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.