Finding the Fourth Proportional to 513,744,398.69, 708,967,270.00 and 278,795,059.18
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Solution
The fourth proportional to 513,744,398.69, 708,967,270.00 and 278,795,059.18 is: 384,737,181.56
Step by Step Solution
- Step 1: Write the proportion equation
513,744,398.69 : 708,967,270.00 = 278,795,059.18 : x - Step 2: Convert to fraction form
513,744,398.69/708,967,270.00 = 278,795,059.18/x - Step 3: Cross multiply
513,744,398.69x = 708,967,270.00 × 278,795,059.18 - Step 4: Simplify right side
513,744,398.69x = 197,656,571,993,342,304 - Step 5: Solve for x
x = 197,656,571,993,342,304/513,744,398.69 - Step 6: Final answer
x = 384,737,181.56
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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.