Finding the Fourth Proportional to 230,640,581.43, 318,283,796.16 and 130,190,163.21
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Solution
The fourth proportional to 230,640,581.43, 318,283,796.16 and 130,190,163.21 is: 179,662,308.83
Step by Step Solution
- Step 1: Write the proportion equation
230,640,581.43 : 318,283,796.16 = 130,190,163.21 : x - Step 2: Convert to fraction form
230,640,581.43/318,283,796.16 = 130,190,163.21/x - Step 3: Cross multiply
230,640,581.43x = 318,283,796.16 × 130,190,163.21 - Step 4: Simplify right side
230,640,581.43x = 41,437,419,369,168,776 - Step 5: Solve for x
x = 41,437,419,369,168,776/230,640,581.43 - Step 6: Final answer
x = 179,662,308.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.