Finding the Fourth Proportional to 129,295,376.20, 194,037,542.70 and 91,031,624.20
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Solution
The fourth proportional to 129,295,376.20, 194,037,542.70 and 91,031,624.20 is: 136,613,954.71
Step by Step Solution
- Step 1: Write the proportion equation
129,295,376.20 : 194,037,542.70 = 91,031,624.20 : x - Step 2: Convert to fraction form
129,295,376.20/194,037,542.70 = 91,031,624.20/x - Step 3: Cross multiply
129,295,376.20x = 194,037,542.70 × 91,031,624.20 - Step 4: Simplify right side
129,295,376.20x = 17,663,552,667,757,852 - Step 5: Solve for x
x = 17,663,552,667,757,852/129,295,376.20 - Step 6: Final answer
x = 136,613,954.71
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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.