Finding the Fourth Proportional to 768,394,512.68, 1,060,384,769.85 and 415,970,492
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Solution
The fourth proportional to 768,394,512.68, 1,060,384,769.85 and 415,970,492 is: 574,039,464.29
Step by Step Solution
- Step 1: Write the proportion equation
768,394,512.68 : 1,060,384,769.85 = 415,970,492 : x - Step 2: Convert to fraction form
768,394,512.68/1,060,384,769.85 = 415,970,492/x - Step 3: Cross multiply
768,394,512.68x = 1,060,384,769.85 × 415,970,492 - Step 4: Simplify right side
768,394,512.68x = 441,088,774,423,811,264 - Step 5: Solve for x
x = 441,088,774,423,811,264/768,394,512.68 - Step 6: Final answer
x = 574,039,464.29
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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.