Finding the Fourth Proportional to 512,489,418.45, 707,231,875.86 and 277,534,702.26
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Solution
The fourth proportional to 512,489,418.45, 707,231,875.86 and 277,534,702.26 is: 382,995,982.02
Step by Step Solution
- Step 1: Write the proportion equation
512,489,418.45 : 707,231,875.86 = 277,534,702.26 : x - Step 2: Convert to fraction form
512,489,418.45/707,231,875.86 = 277,534,702.26/x - Step 3: Cross multiply
512,489,418.45x = 707,231,875.86 × 277,534,702.26 - Step 4: Simplify right side
512,489,418.45x = 196,281,388,095,586,368 - Step 5: Solve for x
x = 196,281,388,095,586,368/512,489,418.45 - Step 6: Final answer
x = 382,995,982.02
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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.