Finding the Fourth Proportional to 7,476,420.87, 11,214,629.96 and 1,796,645.21
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Solution
The fourth proportional to 7,476,420.87, 11,214,629.96 and 1,796,645.21 is: 2,694,967.48
Step by Step Solution
- Step 1: Write the proportion equation
7,476,420.87 : 11,214,629.96 = 1,796,645.21 : x - Step 2: Convert to fraction form
7,476,420.87/11,214,629.96 = 1,796,645.21/x - Step 3: Cross multiply
7,476,420.87x = 11,214,629.96 × 1,796,645.21 - Step 4: Simplify right side
7,476,420.87x = 20,148,711,134,500.12 - Step 5: Solve for x
x = 20,148,711,134,500.12/7,476,420.87 - Step 6: Final answer
x = 2,694,967.48
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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.