Finding the Fourth Proportional to 70,847,481.54, 97,766,503.74 and 39,483,861.60
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Solution
The fourth proportional to 70,847,481.54, 97,766,503.74 and 39,483,861.60 is: 54,486,045.50
Step by Step Solution
- Step 1: Write the proportion equation
70,847,481.54 : 97,766,503.74 = 39,483,861.60 : x - Step 2: Convert to fraction form
70,847,481.54/97,766,503.74 = 39,483,861.60/x - Step 3: Cross multiply
70,847,481.54x = 97,766,503.74 × 39,483,861.60 - Step 4: Simplify right side
70,847,481.54x = 3,860,199,102,786,042.50 - Step 5: Solve for x
x = 3,860,199,102,786,042.50/70,847,481.54 - Step 6: Final answer
x = 54,486,045.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.