Finding the Fourth Proportional to 285,222,161.28, 393,930,751.68 and 192,242,398.08
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Solution
The fourth proportional to 285,222,161.28, 393,930,751.68 and 192,242,398.08 is: 265,513,002.36
Step by Step Solution
- Step 1: Write the proportion equation
285,222,161.28 : 393,930,751.68 = 192,242,398.08 : x - Step 2: Convert to fraction form
285,222,161.28/393,930,751.68 = 192,242,398.08/x - Step 3: Cross multiply
285,222,161.28x = 393,930,751.68 × 192,242,398.08 - Step 4: Simplify right side
285,222,161.28x = 75,730,192,380,420,192 - Step 5: Solve for x
x = 75,730,192,380,420,192/285,222,161.28 - Step 6: Final answer
x = 265,513,002.36
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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.