Finding the Fourth Proportional to 146,239,779.28, 201,693,222.24 and 128,560,881.80
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Solution
The fourth proportional to 146,239,779.28, 201,693,222.24 and 128,560,881.80 is: 177,310,569.20
Step by Step Solution
- Step 1: Write the proportion equation
146,239,779.28 : 201,693,222.24 = 128,560,881.80 : x - Step 2: Convert to fraction form
146,239,779.28/201,693,222.24 = 128,560,881.80/x - Step 3: Cross multiply
146,239,779.28x = 201,693,222.24 × 128,560,881.80 - Step 4: Simplify right side
146,239,779.28x = 25,929,858,504,257,772 - Step 5: Solve for x
x = 25,929,858,504,257,772/146,239,779.28 - Step 6: Final answer
x = 177,310,569.20
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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.