Finding the Fourth Proportional to 18,107,633.32, 27,161,055.42 and 8,517,696.28
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Solution
The fourth proportional to 18,107,633.32, 27,161,055.42 and 8,517,696.28 is: 12,776,358.82
Step by Step Solution
- Step 1: Write the proportion equation
18,107,633.32 : 27,161,055.42 = 8,517,696.28 : x - Step 2: Convert to fraction form
18,107,633.32/27,161,055.42 = 8,517,696.28/x - Step 3: Cross multiply
18,107,633.32x = 27,161,055.42 × 8,517,696.28 - Step 4: Simplify right side
18,107,633.32x = 231,349,620,711,807.84 - Step 5: Solve for x
x = 231,349,620,711,807.84/18,107,633.32 - Step 6: Final answer
x = 12,776,358.82
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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.