Finding the Fourth Proportional to 4,743,821.62, 6,545,971.52 and 2,678,712.02
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Solution
The fourth proportional to 4,743,821.62, 6,545,971.52 and 2,678,712.02 is: 3,696,338.94
Step by Step Solution
- Step 1: Write the proportion equation
4,743,821.62 : 6,545,971.52 = 2,678,712.02 : x - Step 2: Convert to fraction form
4,743,821.62/6,545,971.52 = 2,678,712.02/x - Step 3: Cross multiply
4,743,821.62x = 6,545,971.52 × 2,678,712.02 - Step 4: Simplify right side
4,743,821.62x = 17,534,772,593,201.67 - Step 5: Solve for x
x = 17,534,772,593,201.67/4,743,821.62 - Step 6: Final answer
x = 3,696,338.94
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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.