Finding the Fourth Proportional to 4,920,752.28, 6,790,642.40 and 2,745,295.88
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Solution
The fourth proportional to 4,920,752.28, 6,790,642.40 and 2,745,295.88 is: 3,788,510.69
Step by Step Solution
- Step 1: Write the proportion equation
4,920,752.28 : 6,790,642.40 = 2,745,295.88 : x - Step 2: Convert to fraction form
4,920,752.28/6,790,642.40 = 2,745,295.88/x - Step 3: Cross multiply
4,920,752.28x = 6,790,642.40 × 2,745,295.88 - Step 4: Simplify right side
4,920,752.28x = 18,642,322,627,113.16 - Step 5: Solve for x
x = 18,642,322,627,113.16/4,920,752.28 - Step 6: Final answer
x = 3,788,510.69
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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.