Finding the Fourth Proportional to 421,324,740.75, 632,236,780.76 and 234,734,861.13
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Solution
The fourth proportional to 421,324,740.75, 632,236,780.76 and 234,734,861.13 is: 352,241,391.44
Step by Step Solution
- Step 1: Write the proportion equation
421,324,740.75 : 632,236,780.76 = 234,734,861.13 : x - Step 2: Convert to fraction form
421,324,740.75/632,236,780.76 = 234,734,861.13/x - Step 3: Cross multiply
421,324,740.75x = 632,236,780.76 × 234,734,861.13 - Step 4: Simplify right side
421,324,740.75x = 148,408,012,931,803,168 - Step 5: Solve for x
x = 148,408,012,931,803,168/421,324,740.75 - Step 6: Final answer
x = 352,241,391.44
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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.