Finding the Fourth Proportional to 83,669,124.80, 125,503,687.20 and 83,190,827.90
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Solution
The fourth proportional to 83,669,124.80, 125,503,687.20 and 83,190,827.90 is: 124,786,241.85
Step by Step Solution
- Step 1: Write the proportion equation
83,669,124.80 : 125,503,687.20 = 83,190,827.90 : x - Step 2: Convert to fraction form
83,669,124.80/125,503,687.20 = 83,190,827.90/x - Step 3: Cross multiply
83,669,124.80x = 125,503,687.20 × 83,190,827.90 - Step 4: Simplify right side
83,669,124.80x = 10,440,755,642,670,634 - Step 5: Solve for x
x = 10,440,755,642,670,634/83,669,124.80 - Step 6: Final answer
x = 124,786,241.85
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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.