Finding the Fourth Proportional to 129,584,507.43, 194,425,715.35 and 77,805,214.35
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Solution
The fourth proportional to 129,584,507.43, 194,425,715.35 and 77,805,214.35 is: 116,737,214.64
Step by Step Solution
- Step 1: Write the proportion equation
129,584,507.43 : 194,425,715.35 = 77,805,214.35 : x - Step 2: Convert to fraction form
129,584,507.43/194,425,715.35 = 77,805,214.35/x - Step 3: Cross multiply
129,584,507.43x = 194,425,715.35 × 77,805,214.35 - Step 4: Simplify right side
129,584,507.43x = 15,127,334,457,958,834 - Step 5: Solve for x
x = 15,127,334,457,958,834/129,584,507.43 - Step 6: Final answer
x = 116,737,214.64
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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.