Finding the Fourth Proportional to 76,804,902.70, 115,207,354.05 and 50,976,870.10
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Solution
The fourth proportional to 76,804,902.70, 115,207,354.05 and 50,976,870.10 is: 76,465,305.15
Step by Step Solution
- Step 1: Write the proportion equation
76,804,902.70 : 115,207,354.05 = 50,976,870.10 : x - Step 2: Convert to fraction form
76,804,902.70/115,207,354.05 = 50,976,870.10/x - Step 3: Cross multiply
76,804,902.70x = 115,207,354.05 × 50,976,870.10 - Step 4: Simplify right side
76,804,902.70x = 5,872,910,321,971,559 - Step 5: Solve for x
x = 5,872,910,321,971,559/76,804,902.70 - Step 6: Final answer
x = 76,465,305.15
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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.