Finding the Fourth Proportional to 56,197,712.12, 77,554,546.56 and 31,418,942.99
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Solution
The fourth proportional to 56,197,712.12, 77,554,546.56 and 31,418,942.99 is: 43,359,093.90
Step by Step Solution
- Step 1: Write the proportion equation
56,197,712.12 : 77,554,546.56 = 31,418,942.99 : x - Step 2: Convert to fraction form
56,197,712.12/77,554,546.56 = 31,418,942.99/x - Step 3: Cross multiply
56,197,712.12x = 77,554,546.56 × 31,418,942.99 - Step 4: Simplify right side
56,197,712.12x = 2,436,681,876,596,168 - Step 5: Solve for x
x = 2,436,681,876,596,168/56,197,712.12 - Step 6: Final answer
x = 43,359,093.90
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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.