Finding the Fourth Proportional to 970,234,610.40, 1,455,351,915.60 and 280,164,376.80
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Solution
The fourth proportional to 970,234,610.40, 1,455,351,915.60 and 280,164,376.80 is: 420,246,565.20
Step by Step Solution
- Step 1: Write the proportion equation
970,234,610.40 : 1,455,351,915.60 = 280,164,376.80 : x - Step 2: Convert to fraction form
970,234,610.40/1,455,351,915.60 = 280,164,376.80/x - Step 3: Cross multiply
970,234,610.40x = 1,455,351,915.60 × 280,164,376.80 - Step 4: Simplify right side
970,234,610.40x = 407,737,762,458,760,192 - Step 5: Solve for x
x = 407,737,762,458,760,192/970,234,610.40 - Step 6: Final answer
x = 420,246,565.20
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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.