Finding the Fourth Proportional to 19,200,475, 28,800,740.21 and 7,840,923.62
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Solution
The fourth proportional to 19,200,475, 28,800,740.21 and 7,840,923.62 is: 11,761,396.75
Step by Step Solution
- Step 1: Write the proportion equation
19,200,475 : 28,800,740.21 = 7,840,923.62 : x - Step 2: Convert to fraction form
19,200,475/28,800,740.21 = 7,840,923.62/x - Step 3: Cross multiply
19,200,475x = 28,800,740.21 × 7,840,923.62 - Step 4: Simplify right side
19,200,475x = 225,824,404,186,072.78 - Step 5: Solve for x
x = 225,824,404,186,072.78/19,200,475 - Step 6: Final answer
x = 11,761,396.75
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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.