Finding the Fourth Proportional to 290,996,112.51, 401,514,689.48 and 167,212,874.79
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Solution
The fourth proportional to 290,996,112.51, 401,514,689.48 and 167,212,874.79 is: 230,719,321.02
Step by Step Solution
- Step 1: Write the proportion equation
290,996,112.51 : 401,514,689.48 = 167,212,874.79 : x - Step 2: Convert to fraction form
290,996,112.51/401,514,689.48 = 167,212,874.79/x - Step 3: Cross multiply
290,996,112.51x = 401,514,689.48 × 167,212,874.79 - Step 4: Simplify right side
290,996,112.51x = 67,138,425,497,528,904 - Step 5: Solve for x
x = 67,138,425,497,528,904/290,996,112.51 - Step 6: Final answer
x = 230,719,321.02
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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.