Finding the Fourth Proportional to 4,942,057.61, 6,819,987.42 and 2,766,618.65
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Solution
The fourth proportional to 4,942,057.61, 6,819,987.42 and 2,766,618.65 is: 3,817,904.58
Step by Step Solution
- Step 1: Write the proportion equation
4,942,057.61 : 6,819,987.42 = 2,766,618.65 : x - Step 2: Convert to fraction form
4,942,057.61/6,819,987.42 = 2,766,618.65/x - Step 3: Cross multiply
4,942,057.61x = 6,819,987.42 × 2,766,618.65 - Step 4: Simplify right side
4,942,057.61x = 18,868,304,405,987.35 - Step 5: Solve for x
x = 18,868,304,405,987.35/4,942,057.61 - Step 6: Final answer
x = 3,817,904.58
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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.