Finding the Fourth Proportional to 7,447,578.92, 11,171,351.85 and 1,982,675.09
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Solution
The fourth proportional to 7,447,578.92, 11,171,351.85 and 1,982,675.09 is: 2,974,008.23
Step by Step Solution
- Step 1: Write the proportion equation
7,447,578.92 : 11,171,351.85 = 1,982,675.09 : x - Step 2: Convert to fraction form
7,447,578.92/11,171,351.85 = 1,982,675.09/x - Step 3: Cross multiply
7,447,578.92x = 11,171,351.85 × 1,982,675.09 - Step 4: Simplify right side
7,447,578.92x = 22,149,161,034,620.42 - Step 5: Solve for x
x = 22,149,161,034,620.42/7,447,578.92 - Step 6: Final answer
x = 2,974,008.23
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.