Finding the Fourth Proportional to 8,211,050.78, 12,286,067.52 and 5,164,187.99
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Solution
The fourth proportional to 8,211,050.78, 12,286,067.52 and 5,164,187.99 is: 7,727,094.14
Step by Step Solution
- Step 1: Write the proportion equation
8,211,050.78 : 12,286,067.52 = 5,164,187.99 : x - Step 2: Convert to fraction form
8,211,050.78/12,286,067.52 = 5,164,187.99/x - Step 3: Cross multiply
8,211,050.78x = 12,286,067.52 × 5,164,187.99 - Step 4: Simplify right side
8,211,050.78x = 63,447,562,331,113.09 - Step 5: Solve for x
x = 63,447,562,331,113.09/8,211,050.78 - Step 6: Final answer
x = 7,727,094.14
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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.