Finding the Fourth Proportional to 11,335,139.38, 15,642,647.78 and 6,178,489.84
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Solution
The fourth proportional to 11,335,139.38, 15,642,647.78 and 6,178,489.84 is: 8,526,400.70
Step by Step Solution
- Step 1: Write the proportion equation
11,335,139.38 : 15,642,647.78 = 6,178,489.84 : x - Step 2: Convert to fraction form
11,335,139.38/15,642,647.78 = 6,178,489.84/x - Step 3: Cross multiply
11,335,139.38x = 15,642,647.78 × 6,178,489.84 - Step 4: Simplify right side
11,335,139.38x = 96,647,940,379,428.55 - Step 5: Solve for x
x = 96,647,940,379,428.55/11,335,139.38 - Step 6: Final answer
x = 8,526,400.70
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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.