Finding the Fourth Proportional to 21,447,403.08, 29,597,626.56 and 11,657,841.24
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Solution
The fourth proportional to 21,447,403.08, 29,597,626.56 and 11,657,841.24 is: 16,087,935.23
Step by Step Solution
- Step 1: Write the proportion equation
21,447,403.08 : 29,597,626.56 = 11,657,841.24 : x - Step 2: Convert to fraction form
21,447,403.08/29,597,626.56 = 11,657,841.24/x - Step 3: Cross multiply
21,447,403.08x = 29,597,626.56 × 11,657,841.24 - Step 4: Simplify right side
21,447,403.08x = 345,044,431,517,287.31 - Step 5: Solve for x
x = 345,044,431,517,287.31/21,447,403.08 - Step 6: Final answer
x = 16,087,935.23
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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.