Finding the Fourth Proportional to 354,263,114.70, 531,394,672.05 and 199,294,919.10
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Solution
The fourth proportional to 354,263,114.70, 531,394,672.05 and 199,294,919.10 is: 298,942,378.65
Step by Step Solution
- Step 1: Write the proportion equation
354,263,114.70 : 531,394,672.05 = 199,294,919.10 : x - Step 2: Convert to fraction form
354,263,114.70/531,394,672.05 = 199,294,919.10/x - Step 3: Cross multiply
354,263,114.70x = 531,394,672.05 × 199,294,919.10 - Step 4: Simplify right side
354,263,114.70x = 105,904,258,176,375,776 - Step 5: Solve for x
x = 105,904,258,176,375,776/354,263,114.70 - Step 6: Final answer
x = 298,942,378.65
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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.