Finding the Fourth Proportional to 7,387,446.20, 11,081,169.30 and 2,339,151.80
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Solution
The fourth proportional to 7,387,446.20, 11,081,169.30 and 2,339,151.80 is: 3,508,727.70
Step by Step Solution
- Step 1: Write the proportion equation
7,387,446.20 : 11,081,169.30 = 2,339,151.80 : x - Step 2: Convert to fraction form
7,387,446.20/11,081,169.30 = 2,339,151.80/x - Step 3: Cross multiply
7,387,446.20x = 11,081,169.30 × 2,339,151.80 - Step 4: Simplify right side
7,387,446.20x = 25,920,537,114,199.74 - Step 5: Solve for x
x = 25,920,537,114,199.74/7,387,446.20 - Step 6: Final answer
x = 3,508,727.70
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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.