Finding the Fourth Proportional to 310,274,450.28, 428,180,037.84 and 171,042,157.08
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Solution
The fourth proportional to 310,274,450.28, 428,180,037.84 and 171,042,157.08 is: 236,038,891.45
Step by Step Solution
- Step 1: Write the proportion equation
310,274,450.28 : 428,180,037.84 = 171,042,157.08 : x - Step 2: Convert to fraction form
310,274,450.28/428,180,037.84 = 171,042,157.08/x - Step 3: Cross multiply
310,274,450.28x = 428,180,037.84 × 171,042,157.08 - Step 4: Simplify right side
310,274,450.28x = 73,236,837,290,749,632 - Step 5: Solve for x
x = 73,236,837,290,749,632/310,274,450.28 - Step 6: Final answer
x = 236,038,891.45
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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.