Finding the Fourth Proportional to 7,532,720.81, 10,385,397.66 and 4,878,846.53
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Solution
The fourth proportional to 7,532,720.81, 10,385,397.66 and 4,878,846.53 is: 6,726,488.69
Step by Step Solution
- Step 1: Write the proportion equation
7,532,720.81 : 10,385,397.66 = 4,878,846.53 : x - Step 2: Convert to fraction form
7,532,720.81/10,385,397.66 = 4,878,846.53/x - Step 3: Cross multiply
7,532,720.81x = 10,385,397.66 × 4,878,846.53 - Step 4: Simplify right side
7,532,720.81x = 50,668,761,284,234.13 - Step 5: Solve for x
x = 50,668,761,284,234.13/7,532,720.81 - Step 6: Final answer
x = 6,726,488.69
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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.