Finding the Fourth Proportional to 7,761,982.55, 11,630,102.56 and 4,720,147.12
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Solution
The fourth proportional to 7,761,982.55, 11,630,102.56 and 4,720,147.12 is: 7,072,393.53
Step by Step Solution
- Step 1: Write the proportion equation
7,761,982.55 : 11,630,102.56 = 4,720,147.12 : x - Step 2: Convert to fraction form
7,761,982.55/11,630,102.56 = 4,720,147.12/x - Step 3: Cross multiply
7,761,982.55x = 11,630,102.56 × 4,720,147.12 - Step 4: Simplify right side
7,761,982.55x = 54,895,795,133,176.71 - Step 5: Solve for x
x = 54,895,795,133,176.71/7,761,982.55 - Step 6: Final answer
x = 7,072,393.53
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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.