Finding the Fourth Proportional to 8,420,221.74, 12,631,132.89 and 2,354,954.70
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Solution
The fourth proportional to 8,420,221.74, 12,631,132.89 and 2,354,954.70 is: 3,532,655.87
Step by Step Solution
- Step 1: Write the proportion equation
8,420,221.74 : 12,631,132.89 = 2,354,954.70 : x - Step 2: Convert to fraction form
8,420,221.74/12,631,132.89 = 2,354,954.70/x - Step 3: Cross multiply
8,420,221.74x = 12,631,132.89 × 2,354,954.70 - Step 4: Simplify right side
8,420,221.74x = 29,745,745,765,630.09 - Step 5: Solve for x
x = 29,745,745,765,630.09/8,420,221.74 - Step 6: Final answer
x = 3,532,655.87
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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.