Finding the Fourth Proportional to 199,588,423.20, 299,382,634.80 and 145,840,711.20
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Solution
The fourth proportional to 199,588,423.20, 299,382,634.80 and 145,840,711.20 is: 218,761,066.80
Step by Step Solution
- Step 1: Write the proportion equation
199,588,423.20 : 299,382,634.80 = 145,840,711.20 : x - Step 2: Convert to fraction form
199,588,423.20/299,382,634.80 = 145,840,711.20/x - Step 3: Cross multiply
199,588,423.20x = 299,382,634.80 × 145,840,711.20 - Step 4: Simplify right side
199,588,423.20x = 43,662,176,380,161,864 - Step 5: Solve for x
x = 43,662,176,380,161,864/199,588,423.20 - Step 6: Final answer
x = 218,761,066.80
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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.