Finding the Fourth Proportional to 194,017,687.20, 291,239,107.20 and 121,316,558.40
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Solution
The fourth proportional to 194,017,687.20, 291,239,107.20 and 121,316,558.40 is: 182,107,758.66
Step by Step Solution
- Step 1: Write the proportion equation
194,017,687.20 : 291,239,107.20 = 121,316,558.40 : x - Step 2: Convert to fraction form
194,017,687.20/291,239,107.20 = 121,316,558.40/x - Step 3: Cross multiply
194,017,687.20x = 291,239,107.20 × 121,316,558.40 - Step 4: Simplify right side
194,017,687.20x = 35,332,126,156,992,660 - Step 5: Solve for x
x = 35,332,126,156,992,660/194,017,687.20 - Step 6: Final answer
x = 182,107,758.66
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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.