Finding the Fourth Proportional to 204,438,421.80, 306,657,632.70 and 123,816,853.80
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Solution
The fourth proportional to 204,438,421.80, 306,657,632.70 and 123,816,853.80 is: 185,725,280.70
Step by Step Solution
- Step 1: Write the proportion equation
204,438,421.80 : 306,657,632.70 = 123,816,853.80 : x - Step 2: Convert to fraction form
204,438,421.80/306,657,632.70 = 123,816,853.80/x - Step 3: Cross multiply
204,438,421.80x = 306,657,632.70 × 123,816,853.80 - Step 4: Simplify right side
204,438,421.80x = 37,969,383,274,670,000 - Step 5: Solve for x
x = 37,969,383,274,670,000/204,438,421.80 - Step 6: Final answer
x = 185,725,280.70
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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.