Finding the Fourth Proportional to 3,943,717.76, 5,442,330.52 and 2,132,881.76
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Solution
The fourth proportional to 3,943,717.76, 5,442,330.52 and 2,132,881.76 is: 2,943,376.83
Step by Step Solution
- Step 1: Write the proportion equation
3,943,717.76 : 5,442,330.52 = 2,132,881.76 : x - Step 2: Convert to fraction form
3,943,717.76/5,442,330.52 = 2,132,881.76/x - Step 3: Cross multiply
3,943,717.76x = 5,442,330.52 × 2,132,881.76 - Step 4: Simplify right side
3,943,717.76x = 11,607,847,497,999.31 - Step 5: Solve for x
x = 11,607,847,497,999.31/3,943,717.76 - Step 6: Final answer
x = 2,943,376.83
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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.