Finding the Fourth Proportional to 3,903,301.66, 5,386,440.58 and 2,161,048.70
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Solution
The fourth proportional to 3,903,301.66, 5,386,440.58 and 2,161,048.70 is: 2,982,183.14
Step by Step Solution
- Step 1: Write the proportion equation
3,903,301.66 : 5,386,440.58 = 2,161,048.70 : x - Step 2: Convert to fraction form
3,903,301.66/5,386,440.58 = 2,161,048.70/x - Step 3: Cross multiply
3,903,301.66x = 5,386,440.58 × 2,161,048.70 - Step 4: Simplify right side
3,903,301.66x = 11,640,360,413,036.25 - Step 5: Solve for x
x = 11,640,360,413,036.25/3,903,301.66 - Step 6: Final answer
x = 2,982,183.14
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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.