Finding the Fourth Proportional to 4,678,840.08, 7,002,291.24 and 3,921,536.40
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Solution
The fourth proportional to 4,678,840.08, 7,002,291.24 and 3,921,536.40 is: 5,868,920.40
Step by Step Solution
- Step 1: Write the proportion equation
4,678,840.08 : 7,002,291.24 = 3,921,536.40 : x - Step 2: Convert to fraction form
4,678,840.08/7,002,291.24 = 3,921,536.40/x - Step 3: Cross multiply
4,678,840.08x = 7,002,291.24 × 3,921,536.40 - Step 4: Simplify right side
4,678,840.08x = 27,459,739,981,061.14 - Step 5: Solve for x
x = 27,459,739,981,061.14/4,678,840.08 - Step 6: Final answer
x = 5,868,920.40
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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.