Finding the Fourth Proportional to 21,567,555.88, 32,351,619.84 and 7,190,628.28
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Solution
The fourth proportional to 21,567,555.88, 32,351,619.84 and 7,190,628.28 is: 10,786,037.78
Step by Step Solution
- Step 1: Write the proportion equation
21,567,555.88 : 32,351,619.84 = 7,190,628.28 : x - Step 2: Convert to fraction form
21,567,555.88/32,351,619.84 = 7,190,628.28/x - Step 3: Cross multiply
21,567,555.88x = 32,351,619.84 × 7,190,628.28 - Step 4: Simplify right side
21,567,555.88x = 232,628,472,525,313.09 - Step 5: Solve for x
x = 232,628,472,525,313.09/21,567,555.88 - Step 6: Final answer
x = 10,786,037.78
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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.