Finding the Fourth Proportional to 6,381,814.50, 9,572,805.09 and 2,121,982.74
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Solution
The fourth proportional to 6,381,814.50, 9,572,805.09 and 2,121,982.74 is: 3,183,001.82
Step by Step Solution
- Step 1: Write the proportion equation
6,381,814.50 : 9,572,805.09 = 2,121,982.74 : x - Step 2: Convert to fraction form
6,381,814.50/9,572,805.09 = 2,121,982.74/x - Step 3: Cross multiply
6,381,814.50x = 9,572,805.09 × 2,121,982.74 - Step 4: Simplify right side
6,381,814.50x = 20,313,327,174,364.15 - Step 5: Solve for x
x = 20,313,327,174,364.15/6,381,814.50 - Step 6: Final answer
x = 3,183,001.82
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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.