Finding the Fourth Proportional to 21,306,768.09, 29,403,327.28 and 11,517,212.43
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Solution
The fourth proportional to 21,306,768.09, 29,403,327.28 and 11,517,212.43 is: 15,893,746.30
Step by Step Solution
- Step 1: Write the proportion equation
21,306,768.09 : 29,403,327.28 = 11,517,212.43 : x - Step 2: Convert to fraction form
21,306,768.09/29,403,327.28 = 11,517,212.43/x - Step 3: Cross multiply
21,306,768.09x = 29,403,327.28 × 11,517,212.43 - Step 4: Simplify right side
21,306,768.09x = 338,644,366,432,574.12 - Step 5: Solve for x
x = 338,644,366,432,574.12/21,306,768.09 - Step 6: Final answer
x = 15,893,746.30
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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.