Finding the Fourth Proportional to 7,202,668.38, 9,938,578.95 and 4,146,292.14
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Solution
The fourth proportional to 7,202,668.38, 9,938,578.95 and 4,146,292.14 is: 5,721,247.96
Step by Step Solution
- Step 1: Write the proportion equation
7,202,668.38 : 9,938,578.95 = 4,146,292.14 : x - Step 2: Convert to fraction form
7,202,668.38/9,938,578.95 = 4,146,292.14/x - Step 3: Cross multiply
7,202,668.38x = 9,938,578.95 × 4,146,292.14 - Step 4: Simplify right side
7,202,668.38x = 41,208,251,783,154.45 - Step 5: Solve for x
x = 41,208,251,783,154.45/7,202,668.38 - Step 6: Final answer
x = 5,721,247.96
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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.