Finding the Fourth Proportional to 146,687,025.75, 202,434,394.10 and 81,496,929.75
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Solution
The fourth proportional to 146,687,025.75, 202,434,394.10 and 81,496,929.75 is: 112,469,262.43
Step by Step Solution
- Step 1: Write the proportion equation
146,687,025.75 : 202,434,394.10 = 81,496,929.75 : x - Step 2: Convert to fraction form
146,687,025.75/202,434,394.10 = 81,496,929.75/x - Step 3: Cross multiply
146,687,025.75x = 202,434,394.10 × 81,496,929.75 - Step 4: Simplify right side
146,687,025.75x = 16,497,781,594,544,030 - Step 5: Solve for x
x = 16,497,781,594,544,030/146,687,025.75 - Step 6: Final answer
x = 112,469,262.43
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1.5x scale
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.