Finding the Fourth Proportional to 13,291,238.70, 19,936,858.05 and 3,193,859.70
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Solution
The fourth proportional to 13,291,238.70, 19,936,858.05 and 3,193,859.70 is: 4,790,789.55
Step by Step Solution
- Step 1: Write the proportion equation
13,291,238.70 : 19,936,858.05 = 3,193,859.70 : x - Step 2: Convert to fraction form
13,291,238.70/19,936,858.05 = 3,193,859.70/x - Step 3: Cross multiply
13,291,238.70x = 19,936,858.05 × 3,193,859.70 - Step 4: Simplify right side
13,291,238.70x = 63,675,527,470,515.59 - Step 5: Solve for x
x = 63,675,527,470,515.59/13,291,238.70 - Step 6: Final answer
x = 4,790,789.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.