Finding the Fourth Proportional to 129,307,832.70, 194,056,227.45 and 91,044,080.70
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Solution
The fourth proportional to 129,307,832.70, 194,056,227.45 and 91,044,080.70 is: 136,632,642.15
Step by Step Solution
- Step 1: Write the proportion equation
129,307,832.70 : 194,056,227.45 = 91,044,080.70 : x - Step 2: Convert to fraction form
129,307,832.70/194,056,227.45 = 91,044,080.70/x - Step 3: Cross multiply
129,307,832.70x = 194,056,227.45 × 91,044,080.70 - Step 4: Simplify right side
129,307,832.70x = 17,667,670,832,295,354 - Step 5: Solve for x
x = 17,667,670,832,295,354/129,307,832.70 - Step 6: Final answer
x = 136,632,642.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.