Finding the Fourth Proportional to 220,059,125.70, 330,088,688.55 and 143,531,621.70
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Solution
The fourth proportional to 220,059,125.70, 330,088,688.55 and 143,531,621.70 is: 215,297,432.55
Step by Step Solution
- Step 1: Write the proportion equation
220,059,125.70 : 330,088,688.55 = 143,531,621.70 : x - Step 2: Convert to fraction form
220,059,125.70/330,088,688.55 = 143,531,621.70/x - Step 3: Cross multiply
220,059,125.70x = 330,088,688.55 × 143,531,621.70 - Step 4: Simplify right side
220,059,125.70x = 47,378,164,772,407,720 - Step 5: Solve for x
x = 47,378,164,772,407,720/220,059,125.70 - Step 6: Final answer
x = 215,297,432.55
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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.