Finding the Fourth Proportional to 17,763,574.40, 26,609,932.20 and 12,378,305.60
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Solution
The fourth proportional to 17,763,574.40, 26,609,932.20 and 12,378,305.60 is: 18,542,769.90
Step by Step Solution
- Step 1: Write the proportion equation
17,763,574.40 : 26,609,932.20 = 12,378,305.60 : x - Step 2: Convert to fraction form
17,763,574.40/26,609,932.20 = 12,378,305.60/x - Step 3: Cross multiply
17,763,574.40x = 26,609,932.20 × 12,378,305.60 - Step 4: Simplify right side
17,763,574.40x = 329,385,872,766,880.31 - Step 5: Solve for x
x = 329,385,872,766,880.31/17,763,574.40 - Step 6: Final answer
x = 18,542,769.90
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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.