Finding the Fourth Proportional to 5,451,887.20, 8,177,830.80 and 4,389,005.20
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Solution
The fourth proportional to 5,451,887.20, 8,177,830.80 and 4,389,005.20 is: 6,583,507.80
Step by Step Solution
- Step 1: Write the proportion equation
5,451,887.20 : 8,177,830.80 = 4,389,005.20 : x - Step 2: Convert to fraction form
5,451,887.20/8,177,830.80 = 4,389,005.20/x - Step 3: Cross multiply
5,451,887.20x = 8,177,830.80 × 4,389,005.20 - Step 4: Simplify right side
5,451,887.20x = 35,892,541,905,920.16 - Step 5: Solve for x
x = 35,892,541,905,920.16/5,451,887.20 - Step 6: Final answer
x = 6,583,507.80
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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.