Finding the Fourth Proportional to 330,858,745.70, 496,288,118.55 and 85,214,905.70
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Solution
The fourth proportional to 330,858,745.70, 496,288,118.55 and 85,214,905.70 is: 127,822,358.55
Step by Step Solution
- Step 1: Write the proportion equation
330,858,745.70 : 496,288,118.55 = 85,214,905.70 : x - Step 2: Convert to fraction form
330,858,745.70/496,288,118.55 = 85,214,905.70/x - Step 3: Cross multiply
330,858,745.70x = 496,288,118.55 × 85,214,905.70 - Step 4: Simplify right side
330,858,745.70x = 42,291,145,222,268,672 - Step 5: Solve for x
x = 42,291,145,222,268,672/330,858,745.70 - Step 6: Final answer
x = 127,822,358.55
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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.