Finding the Fourth Proportional to 121,121,837.10, 167,149,897.92 and 68,909,749.02
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Solution
The fourth proportional to 121,121,837.10, 167,149,897.92 and 68,909,749.02 is: 95,096,456.51
Step by Step Solution
- Step 1: Write the proportion equation
121,121,837.10 : 167,149,897.92 = 68,909,749.02 : x - Step 2: Convert to fraction form
121,121,837.10/167,149,897.92 = 68,909,749.02/x - Step 3: Cross multiply
121,121,837.10x = 167,149,897.92 × 68,909,749.02 - Step 4: Simplify right side
121,121,837.10x = 11,518,257,514,385,818 - Step 5: Solve for x
x = 11,518,257,514,385,818/121,121,837.10 - Step 6: Final answer
x = 95,096,456.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.