Finding the Fourth Proportional to 81,534,577.84, 112,474,839.97 and 48,471,308.21
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Solution
The fourth proportional to 81,534,577.84, 112,474,839.97 and 48,471,308.21 is: 66,864,915.21
Step by Step Solution
- Step 1: Write the proportion equation
81,534,577.84 : 112,474,839.97 = 48,471,308.21 : x - Step 2: Convert to fraction form
81,534,577.84/112,474,839.97 = 48,471,308.21/x - Step 3: Cross multiply
81,534,577.84x = 112,474,839.97 × 48,471,308.21 - Step 4: Simplify right side
81,534,577.84x = 5,451,802,634,056,297 - Step 5: Solve for x
x = 5,451,802,634,056,297/81,534,577.84 - Step 6: Final answer
x = 66,864,915.21
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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.