Finding the Fourth Proportional to 3,015,639.84, 4,162,552.80 and 1,930,833.12
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Solution
The fourth proportional to 3,015,639.84, 4,162,552.80 and 1,930,833.12 is: 2,665,170.66
Step by Step Solution
- Step 1: Write the proportion equation
3,015,639.84 : 4,162,552.80 = 1,930,833.12 : x - Step 2: Convert to fraction form
3,015,639.84/4,162,552.80 = 1,930,833.12/x - Step 3: Cross multiply
3,015,639.84x = 4,162,552.80 × 1,930,833.12 - Step 4: Simplify right side
3,015,639.84x = 8,037,194,809,988.74 - Step 5: Solve for x
x = 8,037,194,809,988.74/3,015,639.84 - Step 6: Final answer
x = 2,665,170.66
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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.