Finding the Fourth Proportional to 150,678,816.18, 225,903,265.56 and 68,740,391.70
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Solution
The fourth proportional to 150,678,816.18, 225,903,265.56 and 68,740,391.70 is: 103,058,142.84
Step by Step Solution
- Step 1: Write the proportion equation
150,678,816.18 : 225,903,265.56 = 68,740,391.70 : x - Step 2: Convert to fraction form
150,678,816.18/225,903,265.56 = 68,740,391.70/x - Step 3: Cross multiply
150,678,816.18x = 225,903,265.56 × 68,740,391.70 - Step 4: Simplify right side
150,678,816.18x = 15,528,678,960,903,520 - Step 5: Solve for x
x = 15,528,678,960,903,520/150,678,816.18 - Step 6: Final answer
x = 103,058,142.84
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1.5x scale
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.