Finding the Fourth Proportional to 455,920,342.82, 629,170,611.09 and 247,076,484.26
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Solution
The fourth proportional to 455,920,342.82, 629,170,611.09 and 247,076,484.26 is: 340,965,839.84
Step by Step Solution
- Step 1: Write the proportion equation
455,920,342.82 : 629,170,611.09 = 247,076,484.26 : x - Step 2: Convert to fraction form
455,920,342.82/629,170,611.09 = 247,076,484.26/x - Step 3: Cross multiply
455,920,342.82x = 629,170,611.09 × 247,076,484.26 - Step 4: Simplify right side
455,920,342.82x = 155,453,262,587,832,960 - Step 5: Solve for x
x = 155,453,262,587,832,960/455,920,342.82 - Step 6: Final answer
x = 340,965,839.84
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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.