Finding the Fourth Proportional to 11,992,641.12, 17,990,221.68 and 3,906,246.96
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Solution
The fourth proportional to 11,992,641.12, 17,990,221.68 and 3,906,246.96 is: 5,859,780.85
Step by Step Solution
- Step 1: Write the proportion equation
11,992,641.12 : 17,990,221.68 = 3,906,246.96 : x - Step 2: Convert to fraction form
11,992,641.12/17,990,221.68 = 3,906,246.96/x - Step 3: Cross multiply
11,992,641.12x = 17,990,221.68 × 3,906,246.96 - Step 4: Simplify right side
11,992,641.12x = 70,274,248,747,226.09 - Step 5: Solve for x
x = 70,274,248,747,226.09/11,992,641.12 - Step 6: Final answer
x = 5,859,780.85
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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.