Finding the Fourth Proportional to 3,421,802.40, 5,121,644.40 and 2,669,776.80
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Solution
The fourth proportional to 3,421,802.40, 5,121,644.40 and 2,669,776.80 is: 3,996,036.53
Step by Step Solution
- Step 1: Write the proportion equation
3,421,802.40 : 5,121,644.40 = 2,669,776.80 : x - Step 2: Convert to fraction form
3,421,802.40/5,121,644.40 = 2,669,776.80/x - Step 3: Cross multiply
3,421,802.40x = 5,121,644.40 × 2,669,776.80 - Step 4: Simplify right side
3,421,802.40x = 13,673,647,396,969.92 - Step 5: Solve for x
x = 13,673,647,396,969.92/3,421,802.40 - Step 6: Final answer
x = 3,996,036.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.