Finding the Fourth Proportional to 68,086,656,403.80, 102,129,984,605.70 and 36,740,990,765.40
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Solution
The fourth proportional to 68,086,656,403.80, 102,129,984,605.70 and 36,740,990,765.40 is: 55,111,486,148.10
Step by Step Solution
- Step 1: Write the proportion equation
68,086,656,403.80 : 102,129,984,605.70 = 36,740,990,765.40 : x - Step 2: Convert to fraction form
68,086,656,403.80/102,129,984,605.70 = 36,740,990,765.40/x - Step 3: Cross multiply
68,086,656,403.80x = 102,129,984,605.70 × 36,740,990,765.40 - Step 4: Simplify right side
68,086,656,403.80x = 3,752,356,821,268,468,072,448 - Step 5: Solve for x
x = 3,752,356,821,268,468,072,448/68,086,656,403.80 - Step 6: Final answer
x = 55,111,486,148.10
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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.