Finding the Fourth Proportional to 3,702,318.99, 5,107,143.91 and 2,153,406.31
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Solution
The fourth proportional to 3,702,318.99, 5,107,143.91 and 2,153,406.31 is: 2,970,504.69
Step by Step Solution
- Step 1: Write the proportion equation
3,702,318.99 : 5,107,143.91 = 2,153,406.31 : x - Step 2: Convert to fraction form
3,702,318.99/5,107,143.91 = 2,153,406.31/x - Step 3: Cross multiply
3,702,318.99x = 5,107,143.91 × 2,153,406.31 - Step 4: Simplify right side
3,702,318.99x = 10,997,755,936,486.02 - Step 5: Solve for x
x = 10,997,755,936,486.02/3,702,318.99 - Step 6: Final answer
x = 2,970,504.69
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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.