Finding the Fourth Proportional to 12,626,863.38, 18,940,334.70 and 3,528,900.99
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Solution
The fourth proportional to 12,626,863.38, 18,940,334.70 and 3,528,900.99 is: 5,293,362.56
Step by Step Solution
- Step 1: Write the proportion equation
12,626,863.38 : 18,940,334.70 = 3,528,900.99 : x - Step 2: Convert to fraction form
12,626,863.38/18,940,334.70 = 3,528,900.99/x - Step 3: Cross multiply
12,626,863.38x = 18,940,334.70 × 3,528,900.99 - Step 4: Simplify right side
12,626,863.38x = 66,838,565,873,761.35 - Step 5: Solve for x
x = 66,838,565,873,761.35/12,626,863.38 - Step 6: Final answer
x = 5,293,362.56
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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.