Finding the Fourth Proportional to 5,639,096.97, 7,781,961.69 and 3,060,778.29
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Solution
The fourth proportional to 5,639,096.97, 7,781,961.69 and 3,060,778.29 is: 4,223,878.31
Step by Step Solution
- Step 1: Write the proportion equation
5,639,096.97 : 7,781,961.69 = 3,060,778.29 : x - Step 2: Convert to fraction form
5,639,096.97/7,781,961.69 = 3,060,778.29/x - Step 3: Cross multiply
5,639,096.97x = 7,781,961.69 × 3,060,778.29 - Step 4: Simplify right side
5,639,096.97x = 23,818,859,394,363.71 - Step 5: Solve for x
x = 23,818,859,394,363.71/5,639,096.97 - Step 6: Final answer
x = 4,223,878.31
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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.