Finding the Fourth Proportional to 2,930,141.70, 4,043,403.09 and 1,640,686.50
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Solution
The fourth proportional to 2,930,141.70, 4,043,403.09 and 1,640,686.50 is: 2,264,039.61
Step by Step Solution
- Step 1: Write the proportion equation
2,930,141.70 : 4,043,403.09 = 1,640,686.50 : x - Step 2: Convert to fraction form
2,930,141.70/4,043,403.09 = 1,640,686.50/x - Step 3: Cross multiply
2,930,141.70x = 4,043,403.09 × 1,640,686.50 - Step 4: Simplify right side
2,930,141.70x = 6,633,956,863,821.29 - Step 5: Solve for x
x = 6,633,956,863,821.29/2,930,141.70 - Step 6: Final answer
x = 2,264,039.61
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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.