Finding the Fourth Proportional to 528,126,213.84, 728,777,602.11 and 293,158,367.43
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Solution
The fourth proportional to 528,126,213.84, 728,777,602.11 and 293,158,367.43 is: 404,538,245.70
Step by Step Solution
- Step 1: Write the proportion equation
528,126,213.84 : 728,777,602.11 = 293,158,367.43 : x - Step 2: Convert to fraction form
528,126,213.84/728,777,602.11 = 293,158,367.43/x - Step 3: Cross multiply
528,126,213.84x = 728,777,602.11 × 293,158,367.43 - Step 4: Simplify right side
528,126,213.84x = 213,647,252,054,117,728 - Step 5: Solve for x
x = 213,647,252,054,117,728/528,126,213.84 - Step 6: Final answer
x = 404,538,245.70
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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.