Finding the Fourth Proportional to 713,187,673.86, 984,200,147.74 and 395,647,927.99
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Solution
The fourth proportional to 713,187,673.86, 984,200,147.74 and 395,647,927.99 is: 545,994,782.93
Step by Step Solution
- Step 1: Write the proportion equation
713,187,673.86 : 984,200,147.74 = 395,647,927.99 : x - Step 2: Convert to fraction form
713,187,673.86/984,200,147.74 = 395,647,927.99/x - Step 3: Cross multiply
713,187,673.86x = 984,200,147.74 × 395,647,927.99 - Step 4: Simplify right side
713,187,673.86x = 389,396,749,178,816,960 - Step 5: Solve for x
x = 389,396,749,178,816,960/713,187,673.86 - Step 6: Final answer
x = 545,994,782.93
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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.