Finding the Fourth Proportional to 159,467,420.20, 239,313,104.70 and 68,656,181.80
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Solution
The fourth proportional to 159,467,420.20, 239,313,104.70 and 68,656,181.80 is: 103,032,481.51
Step by Step Solution
- Step 1: Write the proportion equation
159,467,420.20 : 239,313,104.70 = 68,656,181.80 : x - Step 2: Convert to fraction form
159,467,420.20/239,313,104.70 = 68,656,181.80/x - Step 3: Cross multiply
159,467,420.20x = 239,313,104.70 × 68,656,181.80 - Step 4: Simplify right side
159,467,420.20x = 16,430,324,023,405,632 - Step 5: Solve for x
x = 16,430,324,023,405,632/159,467,420.20 - Step 6: Final answer
x = 103,032,481.51
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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.