Finding the Fourth Proportional to 215,291,221.80, 322,936,832.70 and 177,027,469.80
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Solution
The fourth proportional to 215,291,221.80, 322,936,832.70 and 177,027,469.80 is: 265,541,204.70
Step by Step Solution
- Step 1: Write the proportion equation
215,291,221.80 : 322,936,832.70 = 177,027,469.80 : x - Step 2: Convert to fraction form
215,291,221.80/322,936,832.70 = 177,027,469.80/x - Step 3: Cross multiply
215,291,221.80x = 322,936,832.70 × 177,027,469.80 - Step 4: Simplify right side
215,291,221.80x = 57,168,690,398,106,904 - Step 5: Solve for x
x = 57,168,690,398,106,904/215,291,221.80 - Step 6: Final answer
x = 265,541,204.70
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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.