Finding the Fourth Proportional to 4,982,028.30, 7,474,792.05 and 2,143,010.70
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Solution
The fourth proportional to 4,982,028.30, 7,474,792.05 and 2,143,010.70 is: 3,215,268.64
Step by Step Solution
- Step 1: Write the proportion equation
4,982,028.30 : 7,474,792.05 = 2,143,010.70 : x - Step 2: Convert to fraction form
4,982,028.30/7,474,792.05 = 2,143,010.70/x - Step 3: Cross multiply
4,982,028.30x = 7,474,792.05 × 2,143,010.70 - Step 4: Simplify right side
4,982,028.30x = 16,018,559,343,424.94 - Step 5: Solve for x
x = 16,018,559,343,424.94/4,982,028.30 - Step 6: Final answer
x = 3,215,268.64
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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.