Finding the Fourth Proportional to 18,940,930.68, 28,415,604.78 and 8,838,040.44
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Solution
The fourth proportional to 18,940,930.68, 28,415,604.78 and 8,838,040.44 is: 13,259,024.51
Step by Step Solution
- Step 1: Write the proportion equation
18,940,930.68 : 28,415,604.78 = 8,838,040.44 : x - Step 2: Convert to fraction form
18,940,930.68/28,415,604.78 = 8,838,040.44/x - Step 3: Cross multiply
18,940,930.68x = 28,415,604.78 × 8,838,040.44 - Step 4: Simplify right side
18,940,930.68x = 251,138,264,172,697.31 - Step 5: Solve for x
x = 251,138,264,172,697.31/18,940,930.68 - Step 6: Final answer
x = 13,259,024.51
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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.