Finding the Fourth Proportional to 20,437,336.99, 28,204,205.91 and 11,145,414.04
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Solution
The fourth proportional to 20,437,336.99, 28,204,205.91 and 11,145,414.04 is: 15,381,042.68
Step by Step Solution
- Step 1: Write the proportion equation
20,437,336.99 : 28,204,205.91 = 11,145,414.04 : x - Step 2: Convert to fraction form
20,437,336.99/28,204,205.91 = 11,145,414.04/x - Step 3: Cross multiply
20,437,336.99x = 28,204,205.91 × 11,145,414.04 - Step 4: Simplify right side
20,437,336.99x = 314,347,552,536,364.94 - Step 5: Solve for x
x = 314,347,552,536,364.94/20,437,336.99 - Step 6: Final answer
x = 15,381,042.68
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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.