Finding the Fourth Proportional to 220,766,705.79, 304,644,324.61 and 121,641,905.96
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Solution
The fourth proportional to 220,766,705.79, 304,644,324.61 and 121,641,905.96 is: 167,858,265.37
Step by Step Solution
- Step 1: Write the proportion equation
220,766,705.79 : 304,644,324.61 = 121,641,905.96 : x - Step 2: Convert to fraction form
220,766,705.79/304,644,324.61 = 121,641,905.96/x - Step 3: Cross multiply
220,766,705.79x = 304,644,324.61 × 121,641,905.96 - Step 4: Simplify right side
220,766,705.79x = 37,057,516,285,228,576 - Step 5: Solve for x
x = 37,057,516,285,228,576/220,766,705.79 - Step 6: Final answer
x = 167,858,265.37
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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.