Finding the Fourth Proportional to 31,991,310.38, 44,149,260.02 and 18,758,648.18
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Solution
The fourth proportional to 31,991,310.38, 44,149,260.02 and 18,758,648.18 is: 25,887,668.44
Step by Step Solution
- Step 1: Write the proportion equation
31,991,310.38 : 44,149,260.02 = 18,758,648.18 : x - Step 2: Convert to fraction form
31,991,310.38/44,149,260.02 = 18,758,648.18/x - Step 3: Cross multiply
31,991,310.38x = 44,149,260.02 × 18,758,648.18 - Step 4: Simplify right side
31,991,310.38x = 828,180,435,807,980.25 - Step 5: Solve for x
x = 828,180,435,807,980.25/31,991,310.38 - Step 6: Final answer
x = 25,887,668.44
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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.