Finding the Fourth Proportional to 18,146,516.80, 27,219,775.20 and 16,578,875.20
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Solution
The fourth proportional to 18,146,516.80, 27,219,775.20 and 16,578,875.20 is: 24,868,312.80
Step by Step Solution
- Step 1: Write the proportion equation
18,146,516.80 : 27,219,775.20 = 16,578,875.20 : x - Step 2: Convert to fraction form
18,146,516.80/27,219,775.20 = 16,578,875.20/x - Step 3: Cross multiply
18,146,516.80x = 27,219,775.20 × 16,578,875.20 - Step 4: Simplify right side
18,146,516.80x = 451,273,256,012,855 - Step 5: Solve for x
x = 451,273,256,012,855/18,146,516.80 - Step 6: Final answer
x = 24,868,312.80
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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.