Finding the Fourth Proportional to 168,191,142.60, 252,286,713.90 and 103,284,481.80
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Solution
The fourth proportional to 168,191,142.60, 252,286,713.90 and 103,284,481.80 is: 154,926,722.70
Step by Step Solution
- Step 1: Write the proportion equation
168,191,142.60 : 252,286,713.90 = 103,284,481.80 : x - Step 2: Convert to fraction form
168,191,142.60/252,286,713.90 = 103,284,481.80/x - Step 3: Cross multiply
168,191,142.60x = 252,286,713.90 × 103,284,481.80 - Step 4: Simplify right side
168,191,142.60x = 26,057,302,510,186,356 - Step 5: Solve for x
x = 26,057,302,510,186,356/168,191,142.60 - Step 6: Final answer
x = 154,926,722.70
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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.