Finding the Fourth Proportional to 5,120,143.92, 7,681,337.57 and 1,925,270.09
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Solution
The fourth proportional to 5,120,143.92, 7,681,337.57 and 1,925,270.09 is: 2,888,326.91
Step by Step Solution
- Step 1: Write the proportion equation
5,120,143.92 : 7,681,337.57 = 1,925,270.09 : x - Step 2: Convert to fraction form
5,120,143.92/7,681,337.57 = 1,925,270.09/x - Step 3: Cross multiply
5,120,143.92x = 7,681,337.57 × 1,925,270.09 - Step 4: Simplify right side
5,120,143.92x = 14,788,649,477,992.20 - Step 5: Solve for x
x = 14,788,649,477,992.20/5,120,143.92 - Step 6: Final answer
x = 2,888,326.91
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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.