Finding the Fourth Proportional to 54,569,414.80, 81,865,494.60 and 18,189,107.20
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Solution
The fourth proportional to 54,569,414.80, 81,865,494.60 and 18,189,107.20 is: 27,287,451.45
Step by Step Solution
- Step 1: Write the proportion equation
54,569,414.80 : 81,865,494.60 = 18,189,107.20 : x - Step 2: Convert to fraction form
54,569,414.80/81,865,494.60 = 18,189,107.20/x - Step 3: Cross multiply
54,569,414.80x = 81,865,494.60 × 18,189,107.20 - Step 4: Simplify right side
54,569,414.80x = 1,489,060,257,260,421 - Step 5: Solve for x
x = 1,489,060,257,260,421/54,569,414.80 - Step 6: Final answer
x = 27,287,451.45
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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.