Finding the Fourth Proportional to 18,485,443.51, 27,730,687.41 and 7,700,222.09
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Solution
The fourth proportional to 18,485,443.51, 27,730,687.41 and 7,700,222.09 is: 11,551,383.75
Step by Step Solution
- Step 1: Write the proportion equation
18,485,443.51 : 27,730,687.41 = 7,700,222.09 : x - Step 2: Convert to fraction form
18,485,443.51/27,730,687.41 = 7,700,222.09/x - Step 3: Cross multiply
18,485,443.51x = 27,730,687.41 × 7,700,222.09 - Step 4: Simplify right side
18,485,443.51x = 213,532,451,765,366.88 - Step 5: Solve for x
x = 213,532,451,765,366.88/18,485,443.51 - Step 6: Final answer
x = 11,551,383.75
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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.