Finding the Fourth Proportional to 206,981,515.80, 310,472,273.70 and 194,226,931.80
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Solution
The fourth proportional to 206,981,515.80, 310,472,273.70 and 194,226,931.80 is: 291,340,397.70
Step by Step Solution
- Step 1: Write the proportion equation
206,981,515.80 : 310,472,273.70 = 194,226,931.80 : x - Step 2: Convert to fraction form
206,981,515.80/310,472,273.70 = 194,226,931.80/x - Step 3: Cross multiply
206,981,515.80x = 310,472,273.70 × 194,226,931.80 - Step 4: Simplify right side
206,981,515.80x = 60,302,077,129,720,832 - Step 5: Solve for x
x = 60,302,077,129,720,832/206,981,515.80 - Step 6: Final answer
x = 291,340,397.70
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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.