Finding the Fourth Proportional to 4,961,352.60, 7,442,028.90 and 2,121,751.80
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Solution
The fourth proportional to 4,961,352.60, 7,442,028.90 and 2,121,751.80 is: 3,182,627.70
Step by Step Solution
- Step 1: Write the proportion equation
4,961,352.60 : 7,442,028.90 = 2,121,751.80 : x - Step 2: Convert to fraction form
4,961,352.60/7,442,028.90 = 2,121,751.80/x - Step 3: Cross multiply
4,961,352.60x = 7,442,028.90 × 2,121,751.80 - Step 4: Simplify right side
4,961,352.60x = 15,790,138,214,227.02 - Step 5: Solve for x
x = 15,790,138,214,227.02/4,961,352.60 - Step 6: Final answer
x = 3,182,627.70
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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.