Finding the Fourth Proportional to 3,895,872.12, 5,376,203.30 and 2,177,006.76
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Solution
The fourth proportional to 3,895,872.12, 5,376,203.30 and 2,177,006.76 is: 3,004,213.32
Step by Step Solution
- Step 1: Write the proportion equation
3,895,872.12 : 5,376,203.30 = 2,177,006.76 : x - Step 2: Convert to fraction form
3,895,872.12/5,376,203.30 = 2,177,006.76/x - Step 3: Cross multiply
3,895,872.12x = 5,376,203.30 × 2,177,006.76 - Step 4: Simplify right side
3,895,872.12x = 11,704,030,927,234.31 - Step 5: Solve for x
x = 11,704,030,927,234.31/3,895,872.12 - Step 6: Final answer
x = 3,004,213.32
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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.