Finding the Fourth Proportional to 162,840,575.80, 244,260,863.70 and 72,141,311.80
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Solution
The fourth proportional to 162,840,575.80, 244,260,863.70 and 72,141,311.80 is: 108,211,967.70
Step by Step Solution
- Step 1: Write the proportion equation
162,840,575.80 : 244,260,863.70 = 72,141,311.80 : x - Step 2: Convert to fraction form
162,840,575.80/244,260,863.70 = 72,141,311.80/x - Step 3: Cross multiply
162,840,575.80x = 244,260,863.70 × 72,141,311.80 - Step 4: Simplify right side
162,840,575.80x = 17,621,299,128,719,000 - Step 5: Solve for x
x = 17,621,299,128,719,000/162,840,575.80 - Step 6: Final answer
x = 108,211,967.70
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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.