Finding the Fourth Proportional to 19,796,942.71, 27,320,851.70 and 11,097,909.64
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Solution
The fourth proportional to 19,796,942.71, 27,320,851.70 and 11,097,909.64 is: 15,315,715.56
Step by Step Solution
- Step 1: Write the proportion equation
19,796,942.71 : 27,320,851.70 = 11,097,909.64 : x - Step 2: Convert to fraction form
19,796,942.71/27,320,851.70 = 11,097,909.64/x - Step 3: Cross multiply
19,796,942.71x = 27,320,851.70 × 11,097,909.64 - Step 4: Simplify right side
19,796,942.71x = 303,204,343,454,440.38 - Step 5: Solve for x
x = 303,204,343,454,440.38/19,796,942.71 - Step 6: Final answer
x = 15,315,715.56
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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.