Finding the Fourth Proportional to 2,121,330.21, 2,928,900.24 and 1,985,812.76
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Solution
The fourth proportional to 2,121,330.21, 2,928,900.24 and 1,985,812.76 is: 2,741,792.59
Step by Step Solution
- Step 1: Write the proportion equation
2,121,330.21 : 2,928,900.24 = 1,985,812.76 : x - Step 2: Convert to fraction form
2,121,330.21/2,928,900.24 = 1,985,812.76/x - Step 3: Cross multiply
2,121,330.21x = 2,928,900.24 × 1,985,812.76 - Step 4: Simplify right side
2,121,330.21x = 5,816,247,454,714.56 - Step 5: Solve for x
x = 5,816,247,454,714.56/2,121,330.21 - Step 6: Final answer
x = 2,741,792.59
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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.