Finding the Fourth Proportional to 8,311,917.62, 11,470,334.18 and 4,640,890.70
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Solution
The fourth proportional to 8,311,917.62, 11,470,334.18 and 4,640,890.70 is: 6,404,366.56
Step by Step Solution
- Step 1: Write the proportion equation
8,311,917.62 : 11,470,334.18 = 4,640,890.70 : x - Step 2: Convert to fraction form
8,311,917.62/11,470,334.18 = 4,640,890.70/x - Step 3: Cross multiply
8,311,917.62x = 11,470,334.18 × 4,640,890.70 - Step 4: Simplify right side
8,311,917.62x = 53,232,567,221,854.12 - Step 5: Solve for x
x = 53,232,567,221,854.12/8,311,917.62 - Step 6: Final answer
x = 6,404,366.56
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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.