Finding the Fourth Proportional to 20,923,543.53, 31,385,415.47 and 6,350,589.63
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Solution
The fourth proportional to 20,923,543.53, 31,385,415.47 and 6,350,589.63 is: 9,525,914.85
Step by Step Solution
- Step 1: Write the proportion equation
20,923,543.53 : 31,385,415.47 = 6,350,589.63 : x - Step 2: Convert to fraction form
20,923,543.53/31,385,415.47 = 6,350,589.63/x - Step 3: Cross multiply
20,923,543.53x = 31,385,415.47 × 6,350,589.63 - Step 4: Simplify right side
20,923,543.53x = 199,315,893,985,270.62 - Step 5: Solve for x
x = 199,315,893,985,270.62/20,923,543.53 - Step 6: Final answer
x = 9,525,914.85
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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.