Finding the Fourth Proportional to 158,201,769.40, 237,302,654.10 and 157,193,999.80
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Solution
The fourth proportional to 158,201,769.40, 237,302,654.10 and 157,193,999.80 is: 235,790,999.70
Step by Step Solution
- Step 1: Write the proportion equation
158,201,769.40 : 237,302,654.10 = 157,193,999.80 : x - Step 2: Convert to fraction form
158,201,769.40/237,302,654.10 = 157,193,999.80/x - Step 3: Cross multiply
158,201,769.40x = 237,302,654.10 × 157,193,999.80 - Step 4: Simplify right side
158,201,769.40x = 37,302,553,361,134,872 - Step 5: Solve for x
x = 37,302,553,361,134,872/158,201,769.40 - Step 6: Final answer
x = 235,790,999.70
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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.