Finding the Fourth Proportional to 212,605,847.70, 318,908,771.55 and 115,608,023.70
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Solution
The fourth proportional to 212,605,847.70, 318,908,771.55 and 115,608,023.70 is: 173,412,035.55
Step by Step Solution
- Step 1: Write the proportion equation
212,605,847.70 : 318,908,771.55 = 115,608,023.70 : x - Step 2: Convert to fraction form
212,605,847.70/318,908,771.55 = 115,608,023.70/x - Step 3: Cross multiply
212,605,847.70x = 318,908,771.55 × 115,608,023.70 - Step 4: Simplify right side
212,605,847.70x = 36,868,412,819,490,288 - Step 5: Solve for x
x = 36,868,412,819,490,288/212,605,847.70 - Step 6: Final answer
x = 173,412,035.55
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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.