Finding the Fourth Proportional to 3,846,924.84, 5,308,760.07 and 2,128,161.54
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Solution
The fourth proportional to 3,846,924.84, 5,308,760.07 and 2,128,161.54 is: 2,936,865.02
Step by Step Solution
- Step 1: Write the proportion equation
3,846,924.84 : 5,308,760.07 = 2,128,161.54 : x - Step 2: Convert to fraction form
3,846,924.84/5,308,760.07 = 2,128,161.54/x - Step 3: Cross multiply
3,846,924.84x = 5,308,760.07 × 2,128,161.54 - Step 4: Simplify right side
3,846,924.84x = 11,297,899,006,061.71 - Step 5: Solve for x
x = 11,297,899,006,061.71/3,846,924.84 - Step 6: Final answer
x = 2,936,865.02
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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.