Finding the Fourth Proportional to 17,763,495.40, 26,609,813.70 and 12,378,226.60
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Solution
The fourth proportional to 17,763,495.40, 26,609,813.70 and 12,378,226.60 is: 18,542,651.45
Step by Step Solution
- Step 1: Write the proportion equation
17,763,495.40 : 26,609,813.70 = 12,378,226.60 : x - Step 2: Convert to fraction form
17,763,495.40/26,609,813.70 = 12,378,226.60/x - Step 3: Cross multiply
17,763,495.40x = 26,609,813.70 × 12,378,226.60 - Step 4: Simplify right side
17,763,495.40x = 329,382,303,762,384.38 - Step 5: Solve for x
x = 329,382,303,762,384.38/17,763,495.40 - Step 6: Final answer
x = 18,542,651.45
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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.