Finding the Fourth Proportional to 768,403,894.34, 1,060,397,728.97 and 415,979,885.06
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Solution
The fourth proportional to 768,403,894.34, 1,060,397,728.97 and 415,979,885.06 is: 574,052,433.45
Step by Step Solution
- Step 1: Write the proportion equation
768,403,894.34 : 1,060,397,728.97 = 415,979,885.06 : x - Step 2: Convert to fraction form
768,403,894.34/1,060,397,728.97 = 415,979,885.06/x - Step 3: Cross multiply
768,403,894.34x = 1,060,397,728.97 × 415,979,885.06 - Step 4: Simplify right side
768,403,894.34x = 441,104,125,414,825,664 - Step 5: Solve for x
x = 441,104,125,414,825,664/768,403,894.34 - Step 6: Final answer
x = 574,052,433.45
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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.