Finding the Fourth Proportional to 5,475,657.80, 8,212,859.17 and 1,432,535.78
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Solution
The fourth proportional to 5,475,657.80, 8,212,859.17 and 1,432,535.78 is: 2,148,639.50
Step by Step Solution
- Step 1: Write the proportion equation
5,475,657.80 : 8,212,859.17 = 1,432,535.78 : x - Step 2: Convert to fraction form
5,475,657.80/8,212,859.17 = 1,432,535.78/x - Step 3: Cross multiply
5,475,657.80x = 8,212,859.17 × 1,432,535.78 - Step 4: Simplify right side
5,475,657.80x = 11,765,214,617,126.10 - Step 5: Solve for x
x = 11,765,214,617,126.10/5,475,657.80 - Step 6: Final answer
x = 2,148,639.50
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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.