Finding the Fourth Proportional to 7,485,514.80, 11,228,272.20 and 2,698,609.20
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Solution
The fourth proportional to 7,485,514.80, 11,228,272.20 and 2,698,609.20 is: 4,047,913.80
Step by Step Solution
- Step 1: Write the proportion equation
7,485,514.80 : 11,228,272.20 = 2,698,609.20 : x - Step 2: Convert to fraction form
7,485,514.80/11,228,272.20 = 2,698,609.20/x - Step 3: Cross multiply
7,485,514.80x = 11,228,272.20 × 2,698,609.20 - Step 4: Simplify right side
7,485,514.80x = 30,300,718,659,024.24 - Step 5: Solve for x
x = 30,300,718,659,024.24/7,485,514.80 - Step 6: Final answer
x = 4,047,913.80
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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.