Finding the Fourth Proportional to 31,542,703.99, 47,313,675.27 and 8,197,378.94
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Solution
The fourth proportional to 31,542,703.99, 47,313,675.27 and 8,197,378.94 is: 12,295,969.47
Step by Step Solution
- Step 1: Write the proportion equation
31,542,703.99 : 47,313,675.27 = 8,197,378.94 : x - Step 2: Convert to fraction form
31,542,703.99/47,313,675.27 = 8,197,378.94/x - Step 3: Cross multiply
31,542,703.99x = 47,313,675.27 × 8,197,378.94 - Step 4: Simplify right side
31,542,703.99x = 387,848,125,350,581 - Step 5: Solve for x
x = 387,848,125,350,581/31,542,703.99 - Step 6: Final answer
x = 12,295,969.47
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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.