Finding the Fourth Proportional to 5,321,044.80, 7,981,567.20 and 4,628,203.20
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Solution
The fourth proportional to 5,321,044.80, 7,981,567.20 and 4,628,203.20 is: 6,942,304.80
Step by Step Solution
- Step 1: Write the proportion equation
5,321,044.80 : 7,981,567.20 = 4,628,203.20 : x - Step 2: Convert to fraction form
5,321,044.80/7,981,567.20 = 4,628,203.20/x - Step 3: Cross multiply
5,321,044.80x = 7,981,567.20 × 4,628,203.20 - Step 4: Simplify right side
5,321,044.80x = 36,940,314,856,055.04 - Step 5: Solve for x
x = 36,940,314,856,055.04/5,321,044.80 - Step 6: Final answer
x = 6,942,304.80
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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.