Finding the Fourth Proportional to 159,467,431.20, 239,313,121.20 and 68,656,192.80
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Solution
The fourth proportional to 159,467,431.20, 239,313,121.20 and 68,656,192.80 is: 103,032,498.02
Step by Step Solution
- Step 1: Write the proportion equation
159,467,431.20 : 239,313,121.20 = 68,656,192.80 : x - Step 2: Convert to fraction form
159,467,431.20/239,313,121.20 = 68,656,192.80/x - Step 3: Cross multiply
159,467,431.20x = 239,313,121.20 × 68,656,192.80 - Step 4: Simplify right side
159,467,431.20x = 16,430,327,788,676,966 - Step 5: Solve for x
x = 16,430,327,788,676,966/159,467,431.20 - Step 6: Final answer
x = 103,032,498.02
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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.