Finding the Fourth Proportional to 6,212,709.09, 8,573,456.82 and 3,421,778.76
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Solution
The fourth proportional to 6,212,709.09, 8,573,456.82 and 3,421,778.76 is: 4,722,009.68
Step by Step Solution
- Step 1: Write the proportion equation
6,212,709.09 : 8,573,456.82 = 3,421,778.76 : x - Step 2: Convert to fraction form
6,212,709.09/8,573,456.82 = 3,421,778.76/x - Step 3: Cross multiply
6,212,709.09x = 8,573,456.82 × 3,421,778.76 - Step 4: Simplify right side
6,212,709.09x = 29,336,472,446,453.14 - Step 5: Solve for x
x = 29,336,472,446,453.14/6,212,709.09 - Step 6: Final answer
x = 4,722,009.68
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1.5x scale
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.