Finding the Fourth Proportional to 2,161,427.18, 2,982,792.38 and 1,181,394.20
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Solution
The fourth proportional to 2,161,427.18, 2,982,792.38 and 1,181,394.20 is: 1,630,336.49
Step by Step Solution
- Step 1: Write the proportion equation
2,161,427.18 : 2,982,792.38 = 1,181,394.20 : x - Step 2: Convert to fraction form
2,161,427.18/2,982,792.38 = 1,181,394.20/x - Step 3: Cross multiply
2,161,427.18x = 2,982,792.38 × 1,181,394.20 - Step 4: Simplify right side
2,161,427.18x = 3,523,853,596,715.26 - Step 5: Solve for x
x = 3,523,853,596,715.26/2,161,427.18 - Step 6: Final answer
x = 1,630,336.49
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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.