Finding the Fourth Proportional to 68,086,656,409.80, 102,129,984,614.70 and 36,740,990,771.40
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Solution
The fourth proportional to 68,086,656,409.80, 102,129,984,614.70 and 36,740,990,771.40 is: 55,111,486,157.10
Step by Step Solution
- Step 1: Write the proportion equation
68,086,656,409.80 : 102,129,984,614.70 = 36,740,990,771.40 : x - Step 2: Convert to fraction form
68,086,656,409.80/102,129,984,614.70 = 36,740,990,771.40/x - Step 3: Cross multiply
68,086,656,409.80x = 102,129,984,614.70 × 36,740,990,771.40 - Step 4: Simplify right side
68,086,656,409.80x = 3,752,356,822,211,916,988,416 - Step 5: Solve for x
x = 3,752,356,822,211,916,988,416/68,086,656,409.80 - Step 6: Final answer
x = 55,111,486,157.10
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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.