Finding the Fourth Proportional to 217,536,727.20, 326,305,090.80 and 197,718,640.80
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Solution
The fourth proportional to 217,536,727.20, 326,305,090.80 and 197,718,640.80 is: 296,577,961.20
Step by Step Solution
- Step 1: Write the proportion equation
217,536,727.20 : 326,305,090.80 = 197,718,640.80 : x - Step 2: Convert to fraction form
217,536,727.20/326,305,090.80 = 197,718,640.80/x - Step 3: Cross multiply
217,536,727.20x = 326,305,090.80 × 197,718,640.80 - Step 4: Simplify right side
217,536,727.20x = 64,516,599,039,096,592 - Step 5: Solve for x
x = 64,516,599,039,096,592/217,536,727.20 - Step 6: Final answer
x = 296,577,961.20
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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.