Finding the Fourth Proportional to 541,722,415.05, 747,640,752.35 and 321,705,841.05
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Solution
The fourth proportional to 541,722,415.05, 747,640,752.35 and 321,705,841.05 is: 443,991,960.37
Step by Step Solution
- Step 1: Write the proportion equation
541,722,415.05 : 747,640,752.35 = 321,705,841.05 : x - Step 2: Convert to fraction form
541,722,415.05/747,640,752.35 = 321,705,841.05/x - Step 3: Cross multiply
541,722,415.05x = 747,640,752.35 × 321,705,841.05 - Step 4: Simplify right side
541,722,415.05x = 240,520,397,036,403,008 - Step 5: Solve for x
x = 240,520,397,036,403,008/541,722,415.05 - Step 6: Final answer
x = 443,991,960.37
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1.5x scale
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.