Finding the Fourth Proportional to 71,026,650.77, 97,989,678.65 and 43,138,841.42
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Solution
The fourth proportional to 71,026,650.77, 97,989,678.65 and 43,138,841.42 is: 59,515,142.03
Step by Step Solution
- Step 1: Write the proportion equation
71,026,650.77 : 97,989,678.65 = 43,138,841.42 : x - Step 2: Convert to fraction form
71,026,650.77/97,989,678.65 = 43,138,841.42/x - Step 3: Cross multiply
71,026,650.77x = 97,989,678.65 × 43,138,841.42 - Step 4: Simplify right side
71,026,650.77x = 4,227,161,208,431,931 - Step 5: Solve for x
x = 4,227,161,208,431,931/71,026,650.77 - Step 6: Final answer
x = 59,515,142.03
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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.