Finding the Fourth Proportional to 7,200,735.28, 9,932,332.92 and 4,618,325.68
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Solution
The fourth proportional to 7,200,735.28, 9,932,332.92 and 4,618,325.68 is: 6,370,286.70
Step by Step Solution
- Step 1: Write the proportion equation
7,200,735.28 : 9,932,332.92 = 4,618,325.68 : x - Step 2: Convert to fraction form
7,200,735.28/9,932,332.92 = 4,618,325.68/x - Step 3: Cross multiply
7,200,735.28x = 9,932,332.92 × 4,618,325.68 - Step 4: Simplify right side
7,200,735.28x = 45,870,748,186,745.38 - Step 5: Solve for x
x = 45,870,748,186,745.38/7,200,735.28 - Step 6: Final answer
x = 6,370,286.70
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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.