Finding the Fourth Proportional to 121,668,350.40, 182,531,233.62 and 39,786,910.48
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Solution
The fourth proportional to 121,668,350.40, 182,531,233.62 and 39,786,910.48 is: 59,689,753.56
Step by Step Solution
- Step 1: Write the proportion equation
121,668,350.40 : 182,531,233.62 = 39,786,910.48 : x - Step 2: Convert to fraction form
121,668,350.40/182,531,233.62 = 39,786,910.48/x - Step 3: Cross multiply
121,668,350.40x = 182,531,233.62 × 39,786,910.48 - Step 4: Simplify right side
121,668,350.40x = 7,262,353,851,044,333 - Step 5: Solve for x
x = 7,262,353,851,044,333/121,668,350.40 - Step 6: Final answer
x = 59,689,753.56
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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.