Finding the Fourth Proportional to 4,128,859.10, 5,699,896.49 and 2,580,981.81
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Solution
The fourth proportional to 4,128,859.10, 5,699,896.49 and 2,580,981.81 is: 3,563,049.45
Step by Step Solution
- Step 1: Write the proportion equation
4,128,859.10 : 5,699,896.49 = 2,580,981.81 : x - Step 2: Convert to fraction form
4,128,859.10/5,699,896.49 = 2,580,981.81/x - Step 3: Cross multiply
4,128,859.10x = 5,699,896.49 × 2,580,981.81 - Step 4: Simplify right side
4,128,859.10x = 14,711,329,144,650.69 - Step 5: Solve for x
x = 14,711,329,144,650.69/4,128,859.10 - Step 6: Final answer
x = 3,563,049.45
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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.