Finding the Fourth Proportional to 7,233,689.22, 9,982,620.18 and 3,970,807.62
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Solution
The fourth proportional to 7,233,689.22, 9,982,620.18 and 3,970,807.62 is: 5,479,785.36
Step by Step Solution
- Step 1: Write the proportion equation
7,233,689.22 : 9,982,620.18 = 3,970,807.62 : x - Step 2: Convert to fraction form
7,233,689.22/9,982,620.18 = 3,970,807.62/x - Step 3: Cross multiply
7,233,689.22x = 9,982,620.18 × 3,970,807.62 - Step 4: Simplify right side
7,233,689.22x = 39,639,064,278,309.77 - Step 5: Solve for x
x = 39,639,064,278,309.77/7,233,689.22 - Step 6: Final answer
x = 5,479,785.36
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.