Finding the Fourth Proportional to 5,320,466.40, 7,981,736.40 and 2,125,048.80
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Solution
The fourth proportional to 5,320,466.40, 7,981,736.40 and 2,125,048.80 is: 3,187,987.31
Step by Step Solution
- Step 1: Write the proportion equation
5,320,466.40 : 7,981,736.40 = 2,125,048.80 : x - Step 2: Convert to fraction form
5,320,466.40/7,981,736.40 = 2,125,048.80/x - Step 3: Cross multiply
5,320,466.40x = 7,981,736.40 × 2,125,048.80 - Step 4: Simplify right side
5,320,466.40x = 16,961,579,358,736.32 - Step 5: Solve for x
x = 16,961,579,358,736.32/5,320,466.40 - Step 6: Final answer
x = 3,187,987.31
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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.