Finding the Fourth Proportional to 13,051,446.63, 18,011,507.04 and 8,930,121.66
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Solution
The fourth proportional to 13,051,446.63, 18,011,507.04 and 8,930,121.66 is: 12,323,917.32
Step by Step Solution
- Step 1: Write the proportion equation
13,051,446.63 : 18,011,507.04 = 8,930,121.66 : x - Step 2: Convert to fraction form
13,051,446.63/18,011,507.04 = 8,930,121.66/x - Step 3: Cross multiply
13,051,446.63x = 18,011,507.04 × 8,930,121.66 - Step 4: Simplify right side
13,051,446.63x = 160,844,949,147,146.47 - Step 5: Solve for x
x = 160,844,949,147,146.47/13,051,446.63 - Step 6: Final answer
x = 12,323,917.32
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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.