Finding the Fourth Proportional to 12,296,502.80, 18,444,754.20 and 12,128,541.20
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Solution
The fourth proportional to 12,296,502.80, 18,444,754.20 and 12,128,541.20 is: 18,192,811.80
Step by Step Solution
- Step 1: Write the proportion equation
12,296,502.80 : 18,444,754.20 = 12,128,541.20 : x - Step 2: Convert to fraction form
12,296,502.80/18,444,754.20 = 12,128,541.20/x - Step 3: Cross multiply
12,296,502.80x = 18,444,754.20 × 12,128,541.20 - Step 4: Simplify right side
12,296,502.80x = 223,707,961,238,573.03 - Step 5: Solve for x
x = 223,707,961,238,573.03/12,296,502.80 - Step 6: Final answer
x = 18,192,811.80
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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.