Finding the Fourth Proportional to 331,330,610.40, 496,995,915.60 and 239,497,605.60
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Solution
The fourth proportional to 331,330,610.40, 496,995,915.60 and 239,497,605.60 is: 359,246,408.40
Step by Step Solution
- Step 1: Write the proportion equation
331,330,610.40 : 496,995,915.60 = 239,497,605.60 : x - Step 2: Convert to fraction form
331,330,610.40/496,995,915.60 = 239,497,605.60/x - Step 3: Cross multiply
331,330,610.40x = 496,995,915.60 × 239,497,605.60 - Step 4: Simplify right side
331,330,610.40x = 119,029,331,779,179,696 - Step 5: Solve for x
x = 119,029,331,779,179,696/331,330,610.40 - Step 6: Final answer
x = 359,246,408.40
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1.5x scale
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.