Finding the Fourth Proportional to 18,105,260.78, 24,985,557.60 and 9,845,486.66
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Solution
The fourth proportional to 18,105,260.78, 24,985,557.60 and 9,845,486.66 is: 13,586,933.49
Step by Step Solution
- Step 1: Write the proportion equation
18,105,260.78 : 24,985,557.60 = 9,845,486.66 : x - Step 2: Convert to fraction form
18,105,260.78/24,985,557.60 = 9,845,486.66/x - Step 3: Cross multiply
18,105,260.78x = 24,985,557.60 × 9,845,486.66 - Step 4: Simplify right side
18,105,260.78x = 245,994,974,043,461.62 - Step 5: Solve for x
x = 245,994,974,043,461.62/18,105,260.78 - Step 6: Final answer
x = 13,586,933.49
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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.