Finding the Fourth Proportional to 2,187,825.80, 3,281,738.70 and 2,138,673.80
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Solution
The fourth proportional to 2,187,825.80, 3,281,738.70 and 2,138,673.80 is: 3,208,010.70
Step by Step Solution
- Step 1: Write the proportion equation
2,187,825.80 : 3,281,738.70 = 2,138,673.80 : x - Step 2: Convert to fraction form
2,187,825.80/3,281,738.70 = 2,138,673.80/x - Step 3: Cross multiply
2,187,825.80x = 3,281,738.70 × 2,138,673.80 - Step 4: Simplify right side
2,187,825.80x = 7,018,568,576,136.06 - Step 5: Solve for x
x = 7,018,568,576,136.06/2,187,825.80 - Step 6: Final answer
x = 3,208,010.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.