Finding the Fourth Proportional to 305,676,319.35, 421,725,716.40 and 199,891,660.71
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Solution
The fourth proportional to 305,676,319.35, 421,725,716.40 and 199,891,660.71 is: 275,780,125.84
Step by Step Solution
- Step 1: Write the proportion equation
305,676,319.35 : 421,725,716.40 = 199,891,660.71 : x - Step 2: Convert to fraction form
305,676,319.35/421,725,716.40 = 199,891,660.71/x - Step 3: Cross multiply
305,676,319.35x = 421,725,716.40 × 199,891,660.71 - Step 4: Simplify right side
305,676,319.35x = 84,299,453,815,310,480 - Step 5: Solve for x
x = 84,299,453,815,310,480/305,676,319.35 - Step 6: Final answer
x = 275,780,125.84
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.