Finding the Fourth Proportional to 7,518,448.68, 10,375,181.66 and 4,080,615.90
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Solution
The fourth proportional to 7,518,448.68, 10,375,181.66 and 4,080,615.90 is: 5,631,099.32
Step by Step Solution
- Step 1: Write the proportion equation
7,518,448.68 : 10,375,181.66 = 4,080,615.90 : x - Step 2: Convert to fraction form
7,518,448.68/10,375,181.66 = 4,080,615.90/x - Step 3: Cross multiply
7,518,448.68x = 10,375,181.66 × 4,080,615.90 - Step 4: Simplify right side
7,518,448.68x = 42,337,131,247,184.39 - Step 5: Solve for x
x = 42,337,131,247,184.39/7,518,448.68 - Step 6: Final answer
x = 5,631,099.32
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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.