Finding the Fourth Proportional to 18,413,937.20, 27,609,846.60 and 9,455,985.20
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Solution
The fourth proportional to 18,413,937.20, 27,609,846.60 and 9,455,985.20 is: 14,178,298.64
Step by Step Solution
- Step 1: Write the proportion equation
18,413,937.20 : 27,609,846.60 = 9,455,985.20 : x - Step 2: Convert to fraction form
18,413,937.20/27,609,846.60 = 9,455,985.20/x - Step 3: Cross multiply
18,413,937.20x = 27,609,846.60 × 9,455,985.20 - Step 4: Simplify right side
18,413,937.20x = 261,078,300,823,870.31 - Step 5: Solve for x
x = 261,078,300,823,870.31/18,413,937.20 - Step 6: Final answer
x = 14,178,298.64
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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.