Finding the Fourth Proportional to 21,585,921.41, 29,788,649.34 and 11,796,366.75
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Solution
The fourth proportional to 21,585,921.41, 29,788,649.34 and 11,796,366.75 is: 16,279,028.63
Step by Step Solution
- Step 1: Write the proportion equation
21,585,921.41 : 29,788,649.34 = 11,796,366.75 : x - Step 2: Convert to fraction form
21,585,921.41/29,788,649.34 = 11,796,366.75/x - Step 3: Cross multiply
21,585,921.41x = 29,788,649.34 × 11,796,366.75 - Step 4: Simplify right side
21,585,921.41x = 351,397,832,601,785.44 - Step 5: Solve for x
x = 351,397,832,601,785.44/21,585,921.41 - Step 6: Final answer
x = 16,279,028.63
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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.