Finding the Fourth Proportional to 7,556,720.80, 11,335,081.20 and 3,072,215.20
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Solution
The fourth proportional to 7,556,720.80, 11,335,081.20 and 3,072,215.20 is: 4,608,322.80
Step by Step Solution
- Step 1: Write the proportion equation
7,556,720.80 : 11,335,081.20 = 3,072,215.20 : x - Step 2: Convert to fraction form
7,556,720.80/11,335,081.20 = 3,072,215.20/x - Step 3: Cross multiply
7,556,720.80x = 11,335,081.20 × 3,072,215.20 - Step 4: Simplify right side
7,556,720.80x = 34,823,808,755,874.24 - Step 5: Solve for x
x = 34,823,808,755,874.24/7,556,720.80 - Step 6: Final answer
x = 4,608,322.80
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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.