Finding the Fourth Proportional to 159,036,141.80, 238,554,212.70 and 128,803,053.80
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Solution
The fourth proportional to 159,036,141.80, 238,554,212.70 and 128,803,053.80 is: 193,204,580.70
Step by Step Solution
- Step 1: Write the proportion equation
159,036,141.80 : 238,554,212.70 = 128,803,053.80 : x - Step 2: Convert to fraction form
159,036,141.80/238,554,212.70 = 128,803,053.80/x - Step 3: Cross multiply
159,036,141.80x = 238,554,212.70 × 128,803,053.80 - Step 4: Simplify right side
159,036,141.80x = 30,726,511,092,614,740 - Step 5: Solve for x
x = 30,726,511,092,614,740/159,036,141.80 - Step 6: Final answer
x = 193,204,580.70
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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.