Finding the Fourth Proportional to 135,861,841.40, 203,494,163.70 and 81,915,063.80
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Solution
The fourth proportional to 135,861,841.40, 203,494,163.70 and 81,915,063.80 is: 122,692,562.02
Step by Step Solution
- Step 1: Write the proportion equation
135,861,841.40 : 203,494,163.70 = 81,915,063.80 : x - Step 2: Convert to fraction form
135,861,841.40/203,494,163.70 = 81,915,063.80/x - Step 3: Cross multiply
135,861,841.40x = 203,494,163.70 × 81,915,063.80 - Step 4: Simplify right side
135,861,841.40x = 16,669,237,402,413,142 - Step 5: Solve for x
x = 16,669,237,402,413,142/135,861,841.40 - Step 6: Final answer
x = 122,692,562.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.