Finding the Fourth Proportional to 207,451,406.70, 311,177,110.05 and 195,547,128.30
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Solution
The fourth proportional to 207,451,406.70, 311,177,110.05 and 195,547,128.30 is: 293,320,692.45
Step by Step Solution
- Step 1: Write the proportion equation
207,451,406.70 : 311,177,110.05 = 195,547,128.30 : x - Step 2: Convert to fraction form
207,451,406.70/311,177,110.05 = 195,547,128.30/x - Step 3: Cross multiply
207,451,406.70x = 311,177,110.05 × 195,547,128.30 - Step 4: Simplify right side
207,451,406.70x = 60,849,790,262,970,576 - Step 5: Solve for x
x = 60,849,790,262,970,576/207,451,406.70 - Step 6: Final answer
x = 293,320,692.45
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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.