Finding the Fourth Proportional to 27,782,757.09, 38,339,707.67 and 15,392,602.01
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Solution
The fourth proportional to 27,782,757.09, 38,339,707.67 and 15,392,602.01 is: 21,241,515.35
Step by Step Solution
- Step 1: Write the proportion equation
27,782,757.09 : 38,339,707.67 = 15,392,602.01 : x - Step 2: Convert to fraction form
27,782,757.09/38,339,707.67 = 15,392,602.01/x - Step 3: Cross multiply
27,782,757.09x = 38,339,707.67 × 15,392,602.01 - Step 4: Simplify right side
27,782,757.09x = 590,147,861,075,392.88 - Step 5: Solve for x
x = 590,147,861,075,392.88/27,782,757.09 - Step 6: Final answer
x = 21,241,515.35
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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.