Finding the Fourth Proportional to 5,925,817.20, 8,178,291.40 and 3,347,664.05
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Solution
The fourth proportional to 5,925,817.20, 8,178,291.40 and 3,347,664.05 is: 4,620,151.31
Step by Step Solution
- Step 1: Write the proportion equation
5,925,817.20 : 8,178,291.40 = 3,347,664.05 : x - Step 2: Convert to fraction form
5,925,817.20/8,178,291.40 = 3,347,664.05/x - Step 3: Cross multiply
5,925,817.20x = 8,178,291.40 × 3,347,664.05 - Step 4: Simplify right side
5,925,817.20x = 27,378,172,110,204.17 - Step 5: Solve for x
x = 27,378,172,110,204.17/5,925,817.20 - Step 6: Final answer
x = 4,620,151.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.