Finding the Fourth Proportional to 18,145,536.30, 27,218,304.45 and 7,368,000.30
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Solution
The fourth proportional to 18,145,536.30, 27,218,304.45 and 7,368,000.30 is: 11,052,000.45
Step by Step Solution
- Step 1: Write the proportion equation
18,145,536.30 : 27,218,304.45 = 7,368,000.30 : x - Step 2: Convert to fraction form
18,145,536.30/27,218,304.45 = 7,368,000.30/x - Step 3: Cross multiply
18,145,536.30x = 27,218,304.45 × 7,368,000.30 - Step 4: Simplify right side
18,145,536.30x = 200,544,475,353,091.31 - Step 5: Solve for x
x = 200,544,475,353,091.31/18,145,536.30 - Step 6: Final answer
x = 11,052,000.45
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1.5x scale
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.