Finding the Fourth Proportional to 440,125,531.80, 660,188,297.70 and 310,985,368.80
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Solution
The fourth proportional to 440,125,531.80, 660,188,297.70 and 310,985,368.80 is: 466,478,053.20
Step by Step Solution
- Step 1: Write the proportion equation
440,125,531.80 : 660,188,297.70 = 310,985,368.80 : x - Step 2: Convert to fraction form
440,125,531.80/660,188,297.70 = 310,985,368.80/x - Step 3: Cross multiply
440,125,531.80x = 660,188,297.70 × 310,985,368.80 - Step 4: Simplify right side
440,125,531.80x = 205,308,901,237,678,720 - Step 5: Solve for x
x = 205,308,901,237,678,720/440,125,531.80 - Step 6: Final answer
x = 466,478,053.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.