Finding the Fourth Proportional to 18,443,345.40, 27,681,748.65 and 9,351,767.70
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Solution
The fourth proportional to 18,443,345.40, 27,681,748.65 and 9,351,767.70 is: 14,036,134.84
Step by Step Solution
- Step 1: Write the proportion equation
18,443,345.40 : 27,681,748.65 = 9,351,767.70 : x - Step 2: Convert to fraction form
18,443,345.40/27,681,748.65 = 9,351,767.70/x - Step 3: Cross multiply
18,443,345.40x = 27,681,748.65 × 9,351,767.70 - Step 4: Simplify right side
18,443,345.40x = 258,873,282,904,588.56 - Step 5: Solve for x
x = 258,873,282,904,588.56/18,443,345.40 - Step 6: Final answer
x = 14,036,134.84
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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.