Finding the Fourth Proportional to 135,417,205.36, 203,061,774.45 and 52,457,812.10
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Solution
The fourth proportional to 135,417,205.36, 203,061,774.45 and 52,457,812.10 is: 78,661,912.87
Step by Step Solution
- Step 1: Write the proportion equation
135,417,205.36 : 203,061,774.45 = 52,457,812.10 : x - Step 2: Convert to fraction form
135,417,205.36/203,061,774.45 = 52,457,812.10/x - Step 3: Cross multiply
135,417,205.36x = 203,061,774.45 × 52,457,812.10 - Step 4: Simplify right side
135,417,205.36x = 10,652,176,408,790,680 - Step 5: Solve for x
x = 10,652,176,408,790,680/135,417,205.36 - Step 6: Final answer
x = 78,661,912.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.