Finding the Fourth Proportional to 146,239,818.46, 201,693,276.12 and 128,560,920.91
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Solution
The fourth proportional to 146,239,818.46, 201,693,276.12 and 128,560,920.91 is: 177,310,623.01
Step by Step Solution
- Step 1: Write the proportion equation
146,239,818.46 : 201,693,276.12 = 128,560,920.91 : x - Step 2: Convert to fraction form
146,239,818.46/201,693,276.12 = 128,560,920.91/x - Step 3: Cross multiply
146,239,818.46x = 201,693,276.12 × 128,560,920.91 - Step 4: Simplify right side
146,239,818.46x = 25,929,873,319,342,112 - Step 5: Solve for x
x = 25,929,873,319,342,112/146,239,818.46 - Step 6: Final answer
x = 177,310,623.01
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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.