Finding the Fourth Proportional to 127,631,570.70, 176,129,175.96 and 78,068,304.12
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Solution
The fourth proportional to 127,631,570.70, 176,129,175.96 and 78,068,304.12 is: 107,732,796.81
Step by Step Solution
- Step 1: Write the proportion equation
127,631,570.70 : 176,129,175.96 = 78,068,304.12 : x - Step 2: Convert to fraction form
127,631,570.70/176,129,175.96 = 78,068,304.12/x - Step 3: Cross multiply
127,631,570.70x = 176,129,175.96 × 78,068,304.12 - Step 4: Simplify right side
127,631,570.70x = 13,750,106,073,250,274 - Step 5: Solve for x
x = 13,750,106,073,250,274/127,631,570.70 - Step 6: Final answer
x = 107,732,796.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.