Finding the Fourth Proportional to 5,118,106,962.40, 7,677,160,443.60 and 4,245,693,416.80
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Solution
The fourth proportional to 5,118,106,962.40, 7,677,160,443.60 and 4,245,693,416.80 is: 6,368,540,125.20
Step by Step Solution
- Step 1: Write the proportion equation
5,118,106,962.40 : 7,677,160,443.60 = 4,245,693,416.80 : x - Step 2: Convert to fraction form
5,118,106,962.40/7,677,160,443.60 = 4,245,693,416.80/x - Step 3: Cross multiply
5,118,106,962.40x = 7,677,160,443.60 × 4,245,693,416.80 - Step 4: Simplify right side
5,118,106,962.40x = 32,594,869,555,109,892,096 - Step 5: Solve for x
x = 32,594,869,555,109,892,096/5,118,106,962.40 - Step 6: Final answer
x = 6,368,540,125.20
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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.