Finding the Fourth Proportional to 76,477,697.55, 105,539,237.87 and 41,670,387.99
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Solution
The fourth proportional to 76,477,697.55, 105,539,237.87 and 41,670,387.99 is: 57,505,143.73
Step by Step Solution
- Step 1: Write the proportion equation
76,477,697.55 : 105,539,237.87 = 41,670,387.99 : x - Step 2: Convert to fraction form
76,477,697.55/105,539,237.87 = 41,670,387.99/x - Step 3: Cross multiply
76,477,697.55x = 105,539,237.87 × 41,670,387.99 - Step 4: Simplify right side
76,477,697.55x = 4,397,860,990,003,449 - Step 5: Solve for x
x = 4,397,860,990,003,449/76,477,697.55 - Step 6: Final answer
x = 57,505,143.73
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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.