Finding the Fourth Proportional to 11,375,785.76, 15,698,639.85 and 6,219,147.56
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Solution
The fourth proportional to 11,375,785.76, 15,698,639.85 and 6,219,147.56 is: 8,582,453.98
Step by Step Solution
- Step 1: Write the proportion equation
11,375,785.76 : 15,698,639.85 = 6,219,147.56 : x - Step 2: Convert to fraction form
11,375,785.76/15,698,639.85 = 6,219,147.56/x - Step 3: Cross multiply
11,375,785.76x = 15,698,639.85 × 6,219,147.56 - Step 4: Simplify right side
11,375,785.76x = 97,632,157,718,446.25 - Step 5: Solve for x
x = 97,632,157,718,446.25/11,375,785.76 - Step 6: Final answer
x = 8,582,453.98
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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.