Finding the Fourth Proportional to 768,734,129.68, 1,060,847,816.55 and 416,302,055.39
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Solution
The fourth proportional to 768,734,129.68, 1,060,847,816.55 and 416,302,055.39 is: 574,493,975.79
Step by Step Solution
- Step 1: Write the proportion equation
768,734,129.68 : 1,060,847,816.55 = 416,302,055.39 : x - Step 2: Convert to fraction form
768,734,129.68/1,060,847,816.55 = 416,302,055.39/x - Step 3: Cross multiply
768,734,129.68x = 1,060,847,816.55 × 416,302,055.39 - Step 4: Simplify right side
768,734,129.68x = 441,633,126,485,758,592 - Step 5: Solve for x
x = 441,633,126,485,758,592/768,734,129.68 - Step 6: Final answer
x = 574,493,975.79
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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.