Finding the Fourth Proportional to 13,310,078.50, 18,367,908.36 and 7,198,507
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Solution
The fourth proportional to 13,310,078.50, 18,367,908.36 and 7,198,507 is: 9,933,939.68
Step by Step Solution
- Step 1: Write the proportion equation
13,310,078.50 : 18,367,908.36 = 7,198,507 : x - Step 2: Convert to fraction form
13,310,078.50/18,367,908.36 = 7,198,507/x - Step 3: Cross multiply
13,310,078.50x = 18,367,908.36 × 7,198,507 - Step 4: Simplify right side
13,310,078.50x = 132,221,516,904,818.52 - Step 5: Solve for x
x = 132,221,516,904,818.52/13,310,078.50 - Step 6: Final answer
x = 9,933,939.68
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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.