Finding the Fourth Proportional to 38,425,481.46, 57,620,893.18 and 18,987,129
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Solution
The fourth proportional to 38,425,481.46, 57,620,893.18 and 18,987,129 is: 28,472,130.74
Step by Step Solution
- Step 1: Write the proportion equation
38,425,481.46 : 57,620,893.18 = 18,987,129 : x - Step 2: Convert to fraction form
38,425,481.46/57,620,893.18 = 18,987,129/x - Step 3: Cross multiply
38,425,481.46x = 57,620,893.18 × 18,987,129 - Step 4: Simplify right side
38,425,481.46x = 1,094,055,331,903,880.25 - Step 5: Solve for x
x = 1,094,055,331,903,880.25/38,425,481.46 - Step 6: Final answer
x = 28,472,130.74
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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.