Finding the Fourth Proportional to 14,687,779.15, 20,268,732.12 and 8,161,240.80
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Solution
The fourth proportional to 14,687,779.15, 20,268,732.12 and 8,161,240.80 is: 11,262,288.32
Step by Step Solution
- Step 1: Write the proportion equation
14,687,779.15 : 20,268,732.12 = 8,161,240.80 : x - Step 2: Convert to fraction form
14,687,779.15/20,268,732.12 = 8,161,240.80/x - Step 3: Cross multiply
14,687,779.15x = 20,268,732.12 × 8,161,240.80 - Step 4: Simplify right side
14,687,779.15x = 165,418,003,553,500.84 - Step 5: Solve for x
x = 165,418,003,553,500.84/14,687,779.15 - Step 6: Final answer
x = 11,262,288.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.