Finding the Fourth Proportional to 285,222,157.28, 393,930,746.16 and 192,242,394.08
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Solution
The fourth proportional to 285,222,157.28, 393,930,746.16 and 192,242,394.08 is: 265,512,996.84
Step by Step Solution
- Step 1: Write the proportion equation
285,222,157.28 : 393,930,746.16 = 192,242,394.08 : x - Step 2: Convert to fraction form
285,222,157.28/393,930,746.16 = 192,242,394.08/x - Step 3: Cross multiply
285,222,157.28x = 393,930,746.16 × 192,242,394.08 - Step 4: Simplify right side
285,222,157.28x = 75,730,189,743,519,184 - Step 5: Solve for x
x = 75,730,189,743,519,184/285,222,157.28 - Step 6: Final answer
x = 265,512,996.84
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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.