Finding the Fourth Proportional to 167,981,636.90, 251,972,455.35 and 139,283,822.90
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Solution
The fourth proportional to 167,981,636.90, 251,972,455.35 and 139,283,822.90 is: 208,925,734.35
Step by Step Solution
- Step 1: Write the proportion equation
167,981,636.90 : 251,972,455.35 = 139,283,822.90 : x - Step 2: Convert to fraction form
167,981,636.90/251,972,455.35 = 139,283,822.90/x - Step 3: Cross multiply
167,981,636.90x = 251,972,455.35 × 139,283,822.90 - Step 4: Simplify right side
167,981,636.90x = 35,095,686,846,647,560 - Step 5: Solve for x
x = 35,095,686,846,647,560/167,981,636.90 - Step 6: Final answer
x = 208,925,734.35
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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.