Finding the Fourth Proportional to 7,948,191.80, 11,923,842.90 and 3,399,231.80
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Solution
The fourth proportional to 7,948,191.80, 11,923,842.90 and 3,399,231.80 is: 5,099,512.82
Step by Step Solution
- Step 1: Write the proportion equation
7,948,191.80 : 11,923,842.90 = 3,399,231.80 : x - Step 2: Convert to fraction form
7,948,191.80/11,923,842.90 = 3,399,231.80/x - Step 3: Cross multiply
7,948,191.80x = 11,923,842.90 × 3,399,231.80 - Step 4: Simplify right side
7,948,191.80x = 40,531,905,963,884.22 - Step 5: Solve for x
x = 40,531,905,963,884.22/7,948,191.80 - Step 6: Final answer
x = 5,099,512.82
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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.