Finding the Fourth Proportional to 167,568,111.70, 251,352,167.55 and 81,474,669.70
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Solution
The fourth proportional to 167,568,111.70, 251,352,167.55 and 81,474,669.70 is: 122,212,004.55
Step by Step Solution
- Step 1: Write the proportion equation
167,568,111.70 : 251,352,167.55 = 81,474,669.70 : x - Step 2: Convert to fraction form
167,568,111.70/251,352,167.55 = 81,474,669.70/x - Step 3: Cross multiply
167,568,111.70x = 251,352,167.55 × 81,474,669.70 - Step 4: Simplify right side
167,568,111.70x = 20,478,834,829,515,308 - Step 5: Solve for x
x = 20,478,834,829,515,308/167,568,111.70 - Step 6: Final answer
x = 122,212,004.55
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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.