Finding the Fourth Proportional to 11,235,093.76, 15,520,301.76 and 8,940,318.40
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Solution
The fourth proportional to 11,235,093.76, 15,520,301.76 and 8,940,318.40 is: 12,350,269.82
Step by Step Solution
- Step 1: Write the proportion equation
11,235,093.76 : 15,520,301.76 = 8,940,318.40 : x - Step 2: Convert to fraction form
11,235,093.76/15,520,301.76 = 8,940,318.40/x - Step 3: Cross multiply
11,235,093.76x = 15,520,301.76 × 8,940,318.40 - Step 4: Simplify right side
11,235,093.76x = 138,756,439,398,480.39 - Step 5: Solve for x
x = 138,756,439,398,480.39/11,235,093.76 - Step 6: Final answer
x = 12,350,269.82
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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.