Finding the Fourth Proportional to 81,651,874,220.10, 122,477,811,330.15 and 65,121,933,356.10
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Solution
The fourth proportional to 81,651,874,220.10, 122,477,811,330.15 and 65,121,933,356.10 is: 97,682,900,034.15
Step by Step Solution
- Step 1: Write the proportion equation
81,651,874,220.10 : 122,477,811,330.15 = 65,121,933,356.10 : x - Step 2: Convert to fraction form
81,651,874,220.10/122,477,811,330.15 = 65,121,933,356.10/x - Step 3: Cross multiply
81,651,874,220.10x = 122,477,811,330.15 × 65,121,933,356.10 - Step 4: Simplify right side
81,651,874,220.10x = 7,975,991,867,043,017,129,984 - Step 5: Solve for x
x = 7,975,991,867,043,017,129,984/81,651,874,220.10 - Step 6: Final answer
x = 97,682,900,034.15
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Double scale
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Similar ratio
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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.