Finding the Fourth Proportional to 7,915,306.74, 10,923,163.77 and 4,477,473.96
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Solution
The fourth proportional to 7,915,306.74, 10,923,163.77 and 4,477,473.96 is: 6,178,936.96
Step by Step Solution
- Step 1: Write the proportion equation
7,915,306.74 : 10,923,163.77 = 4,477,473.96 : x - Step 2: Convert to fraction form
7,915,306.74/10,923,163.77 = 4,477,473.96/x - Step 3: Cross multiply
7,915,306.74x = 10,923,163.77 × 4,477,473.96 - Step 4: Simplify right side
7,915,306.74x = 48,908,181,316,819.09 - Step 5: Solve for x
x = 48,908,181,316,819.09/7,915,306.74 - Step 6: Final answer
x = 6,178,936.96
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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.