Finding the Fourth Proportional to 199,631,280.20, 299,446,920.30 and 170,405,961.80
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Solution
The fourth proportional to 199,631,280.20, 299,446,920.30 and 170,405,961.80 is: 255,608,942.70
Step by Step Solution
- Step 1: Write the proportion equation
199,631,280.20 : 299,446,920.30 = 170,405,961.80 : x - Step 2: Convert to fraction form
199,631,280.20/299,446,920.30 = 170,405,961.80/x - Step 3: Cross multiply
199,631,280.20x = 299,446,920.30 × 170,405,961.80 - Step 4: Simplify right side
199,631,280.20x = 51,027,540,461,769,448 - Step 5: Solve for x
x = 51,027,540,461,769,448/199,631,280.20 - Step 6: Final answer
x = 255,608,942.70
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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.