Finding the Fourth Proportional to 4,127,489.40, 6,178,986.90 and 3,067,231.80
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Solution
The fourth proportional to 4,127,489.40, 6,178,986.90 and 3,067,231.80 is: 4,591,746.53
Step by Step Solution
- Step 1: Write the proportion equation
4,127,489.40 : 6,178,986.90 = 3,067,231.80 : x - Step 2: Convert to fraction form
4,127,489.40/6,178,986.90 = 3,067,231.80/x - Step 3: Cross multiply
4,127,489.40x = 6,178,986.90 × 3,067,231.80 - Step 4: Simplify right side
4,127,489.40x = 18,952,385,111,463.42 - Step 5: Solve for x
x = 18,952,385,111,463.42/4,127,489.40 - Step 6: Final answer
x = 4,591,746.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.