Finding the Fourth Proportional to 3,217,605.20, 4,813,966.20 and 2,097,861.20
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Solution
The fourth proportional to 3,217,605.20, 4,813,966.20 and 2,097,861.20 is: 3,138,679.94
Step by Step Solution
- Step 1: Write the proportion equation
3,217,605.20 : 4,813,966.20 = 2,097,861.20 : x - Step 2: Convert to fraction form
3,217,605.20/4,813,966.20 = 2,097,861.20/x - Step 3: Cross multiply
3,217,605.20x = 4,813,966.20 × 2,097,861.20 - Step 4: Simplify right side
3,217,605.20x = 10,099,032,909,091.44 - Step 5: Solve for x
x = 10,099,032,909,091.44/3,217,605.20 - Step 6: Final answer
x = 3,138,679.94
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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.