Finding the Fourth Proportional to 31,375,414.44, 43,302,785.22 and 19,159,318.44
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Solution
The fourth proportional to 31,375,414.44, 43,302,785.22 and 19,159,318.44 is: 26,442,737.61
Step by Step Solution
- Step 1: Write the proportion equation
31,375,414.44 : 43,302,785.22 = 19,159,318.44 : x - Step 2: Convert to fraction form
31,375,414.44/43,302,785.22 = 19,159,318.44/x - Step 3: Cross multiply
31,375,414.44x = 43,302,785.22 × 19,159,318.44 - Step 4: Simplify right side
31,375,414.44x = 829,651,851,368,905.50 - Step 5: Solve for x
x = 829,651,851,368,905.50/31,375,414.44 - Step 6: Final answer
x = 26,442,737.61
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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.