Finding the Fourth Proportional to 231,785,875.80, 347,678,813.70 and 178,038,163.80
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Solution
The fourth proportional to 231,785,875.80, 347,678,813.70 and 178,038,163.80 is: 267,057,245.70
Step by Step Solution
- Step 1: Write the proportion equation
231,785,875.80 : 347,678,813.70 = 178,038,163.80 : x - Step 2: Convert to fraction form
231,785,875.80/347,678,813.70 = 178,038,163.80/x - Step 3: Cross multiply
231,785,875.80x = 347,678,813.70 × 178,038,163.80 - Step 4: Simplify right side
231,785,875.80x = 61,900,097,583,310,288 - Step 5: Solve for x
x = 61,900,097,583,310,288/231,785,875.80 - Step 6: Final answer
x = 267,057,245.70
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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.