Finding the Fourth Proportional to 18,379,410.30, 27,577,972.80 and 12,976,426.80
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Solution
The fourth proportional to 18,379,410.30, 27,577,972.80 and 12,976,426.80 is: 19,470,893.76
Step by Step Solution
- Step 1: Write the proportion equation
18,379,410.30 : 27,577,972.80 = 12,976,426.80 : x - Step 2: Convert to fraction form
18,379,410.30/27,577,972.80 = 12,976,426.80/x - Step 3: Cross multiply
18,379,410.30x = 27,577,972.80 × 12,976,426.80 - Step 4: Simplify right side
18,379,410.30x = 357,863,545,331,591.06 - Step 5: Solve for x
x = 357,863,545,331,591.06/18,379,410.30 - Step 6: Final answer
x = 19,470,893.76
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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.